Odd Wolf – Sermon on Matthew 7:15-23 for the Eighth Sunday after Trinity

Matthew 7:15-23

In the name of Jesus. Amen.

We live in a dangerous world. Because sin and death have entered God’s good creation, there are all sorts of things that can harm you. You could get hit by a drunk driver on the way home. A lunatic could shoot and kill you at the grocery store. Smoke from wildfires can do damage to your lungs. An asteroid could fall from the sky. But Jesus doesn’t tell you to beware of any of those things. The reason Jesus doesn’t warn you about those things isn’t that He is naïve and thinks they are harmless. Rather, He doesn’t warn you about them because they can only temporarily harm you. Christ does warn you—and it’s a stern warning—against false prophets.

Don’t get the wrong idea about these false prophets. A prophet isn’t only someone who predicts the future. Isaiah, Jeremiah, Ezekiel, and Daniel were all prophets who spoke accurately about things that were still in the future. King David was a prophet when he wrote about Christ’s death, resurrection, and rule in many of the Psalms. They did that because they were inspired by the Holy Spirit to declare God’s Word. And sometimes, that Word dealt with things that were still to come. But the Bible also gives the title of prophet to those who publicly preach and teach God’s Word (Act. 15:321 Co. 14:1329-32). That is what Jesus is referring to here when He warns against false prophets. They are people who preach and teach God’s Word, but they do it falsely.

Jesus describes these false prophets as ravenous wolves who dress up in sheep’s clothing. It’s a stern warning. It’s a solemn warning. It’s right up there among the most dire warnings that Jesus speaks in all of Scripture. As serious as this warning is, we should find comfort even in the warning. Let me explain that first, then we’ll get to the warning.

Imagine you were sick. You’re in pain. Your strength keeps declining as you become more and more lethargic. Your body is slowly shutting down. You’ve tried all sorts of things, but none of them work. Doctor after doctor can’t figure out what’s wrong. You know that if this sickness keeps progressing, it’ll kill you. Imagine you finally went to a doctor who had the answer. He diagnoses your illness perfectly, gives you a prescription, and it works. After the first dose, the sickness is gone. Your energy returns. You get back to normal. You go back to that doctor for a follow-up.

He is pleased after he looks at your vitals, sees how well you’re doing, and is delighted. Then the doctor’s face becomes utterly serious. He looks intently at you and says, “Listen to me. Don’t ever stop taking this medicine. Never miss a single dose. Take it exactly as I’ve prescribed it to you. If you ever stop taking it, you’ll die. If anyone tries to tell you about another remedy, they’re wrong. This is the only cure. I’ll always make sure you have it for free. No cost to you ever, but you need to keep taking it.”

Now, would that warning from the doctor be good or bad news? Of course it’s good news. There’s medicine that keeps you healthy, and it’s free. That’s the way we should hear Jesus’ warning against these false prophets. Yes, it’s a stern, sober warning. But it also means that there are true prophets and shepherds who give the medicine of immortality for free.

As you receive the free medicine of the Gospel, beware of false prophets. Beware of the ravenous wolves who would lure you away from this Gospel. They are the most serious danger you face, Christian.

Jesus tells you why they’re dangerous. Sure, Jesus calls them ‘ravenous,’ but that isn’t what makes these wolves a threat to you. The danger isn’t in their sharp teeth and powerful jaws. It isn’t their speed and strength. No, the wolves Jesus warns against are strange. They are odd wolves.

This might sound a little silly but, as I studied this text this week, I kept thinking of children’s stories. I first thought about “The Three Little Pigs.” In that story, the wolf is dangerous because he huffs, puffs, and blows the houses of straw and sticks down. I don’t know for sure, but I don’t think wolves are known for their lung capacity. That wolf at least warns before he comes after the pigs.

Then I thought of “Little Red Riding Hood.” In that story, the wolf doesn’t barge in the door or announce himself with a roar. Instead, he puts on the grandmother’s nightgown, pulls the cap over his ears, softens his voice, and climbs into the bed. For Little Red, the most dangerous thing in the room looked and sounded like the safest person she knew.

That’s the kind of wolf Jesus warns about here. What makes these wolves dangerous is their deception. They come disguised in sheep’s clothing. The wolves who will destroy you look like sheep. They sound right. They will talk about Jesus. They can quote the Bible. They may even do mighty works in Christ’s name (Mt 7:22). The danger is not their strength. The danger is their clothing. 

If these false prophets came to you and looked like a wolf, you would run. If they came preaching open blasphemy, you would barricade the door. But that’s not how they come. They come dressed as a Christian teacher. They appear with a Bible in their hand and a smile on their face. These false prophets come saying things that sound almost right. That is how they get into the house.

Jeremiah warned about the same thing centuries earlier in our Old Testament reading (Jer. 23:16-29). The false prophets of his day did not stand up and say, “Forget about Yahweh,” or, “Follow these other gods.” No! They sounded nice. They softened God’s Law. They proclaimed false things to sinners. “Everything will be fine, and no disaster will come upon you” (Jer 23:17). They spoke visions of their own minds and called it the Word of the Lord. They filled the unrepentant people with false hopes and false comforts. And, sadly, the people listened, because the message felt safe, soft, and comforting. Like a grandmother’s voice. We face the same deception.

But Jesus tells us how to spot the difference. Christ gives us one test: “You will recognize them by their fruits” (Mt 7:16). You don’t recognize them by their personality, by how nice they are, or even by whether they can quote Scripture. Remember, the devil himself used Scripture when he tempted our Lord in the wilderness (Mt. 4:1-11).

According to Jesus, you spot these false prophets by their fruits. The fruit of a prophet is his teaching—just like the fruit of a baker is the bread he bakes, or the fruit of a doctor is the healing he brings. For anyone who prophesies—anyone who proclaims God’s Word—you have to ask two questions: First, “Does this point out where I have sinned? Does it faithfully proclaim that I am a sinner in need of God’s grace and mercy?” Or, “Does this tell me that God loves me and others just the way we are without any repentance?” The second question to ask is, “Does this point me to Christ crucified and risen, freely, without my works?” Or, “Does this put the weight back on my shoulders? Am I being told that my salvation depends on me putting in a little more effort or sincerity or a few more good works?”

Jesus says that a healthy tree cannot bear bad fruit, and a diseased tree cannot bear good fruit (Mt 7:18). In other words, the teaching will eventually show itself. But you need to know the real thing well enough to compare.

That is why Christ keeps driving us back to the Scriptures. That is why studying the Bible is not just some optional busy-work. You can’t turn off your ears and mind the moment a sermon starts. Jesus is calling you to be fruit inspectors. Not because you are smarter than everyone else, but because the wolves are that good at disguise.

God’s Word doesn’t always flatter you. It doesn’t always say, “Peace, peace,” because there isn’t always peace (Jer. 6:148:11Ezk. 13:13). Scripture isn’t always pleasant. It isn’t always what you want to hear. God’s Word kills our old, sinful nature so that it can make us alive. It shows you the wolf and then points you to the only refuge—Christ Himself.

Whenever someone claims to proclaim God’s Word, be suspicious. Watch for red flags. That discernment is a good work that Jesus gives you to do today and every day.

Be wary of every teacher and preacher—including the one standing in this pulpit. Don’t just trust me because I’m so smart, handsome, and friendly. (I’m not much of any of those things.) Test the teaching. Compare it to the Scriptures. Hold fast to God’s Word. See the goodness of His Law. And cling to the Gospel—the full, free forgiveness of sins that the Gospel delivers to you. Build on that.

The wolves are always out there in their soft, wooly, sheepish disguise. But the Good Shepherd has already laid down His life for you, His sheep. His voice, His Word, is what will keep you safe now and for eternity. Amen.

The peace of God, which surpasses all understanding, will guard your hearts and minds in Christ Jesus (Php. 4:7). Amen.

The Lasting Legacy of Pentecost – Sermon on Acts 2:1-21, 36 for the Day of Pentecost

Acts 2:1–21, 36

1 When the day of Pentecost arrived, they were all together in one place. 2 And suddenly there came from heaven a sound like a mighty rushing wind, and it filled the entire house where they were sitting. 3 And divided tongues as of fire appeared to them and rested on each one of them. 4 And they were all filled with the Holy Spirit and began to speak in other tongues as the Spirit gave them utterance. 

5 Now there were dwelling in Jerusalem Jews, devout men from every nation under heaven. 6 And at this sound the multitude came together, and they were bewildered, because each one was hearing them speak in his own language. 7 And they were amazed and astonished, saying, “Are not all these who are speaking Galileans? 8 And how is it that we hear, each of us in his own native language? 9 Parthians and Medes and Elamites and residents of Mesopotamia, Judea and Cappadocia, Pontus and Asia, 10 Phrygia and Pamphylia, Egypt and the parts of Libya belonging to Cyrene, and visitors from Rome, 11 both Jews and proselytes, Cretans and Arabians—we hear them telling in our own tongues the mighty works of God.” 12 And all were amazed and perplexed, saying to one another, “What does this mean?” 13 But others mocking said, “They are filled with new wine.” 

14 But Peter, standing with the eleven, lifted up his voice and addressed them: “Men of Judea and all who dwell in Jerusalem, let this be known to you, and give ear to my words. 15 For these people are not drunk, as you suppose, since it is only the third hour of the day. 16 But this is what was uttered through the prophet Joel: 

17 “ ‘And in the last days it shall be, God declares, 
that I will pour out my Spirit on all flesh, 
and your sons and your daughters shall prophesy, 
and your young men shall see visions, 
and your old men shall dream dreams; 
18 even on my male servants and female servants 
in those days I will pour out my Spirit, and they shall prophesy. 
19 And I will show wonders in the heavens above 
and signs on the earth below, 
blood, and fire, and vapor of smoke; 
20 the sun shall be turned to darkness 
and the moon to blood, 
before the day of the Lord comes, the great and magnificent day. 
21 And it shall come to pass that everyone who calls upon the name of the Lord shall be saved.’

36 Let all the house of Israel therefore know for certain that God has made him both Lord and Christ, this Jesus whom you crucified.”

In the name of Jesus. Amen.

With all the amazing things that happened on the Day of Pentecost, it’s easy to miss the most amazing thing God did when He poured out the Holy Spirit on all flesh (Act. 2:17; Joe. 2:28-29). Our attention is so quickly and easily grabbed by the wowie-zowie things, that we get distracted from the lasting gift that God bestows with this giving of the Holy Spirit. Pentecost is about the sounds, not the sights. It’s about the audible rather than the visible. The work of the Holy Spirit is not so much in what is seen as in what is heard.

Yes, there are tongues of fire that rest on those believers, but as best as we can tell, those tongues of fire were only seen by the 120 Christian believers who had gathered together in one place (Act. 1:15). Notice, there is the sound of a mighty, rushing wind (Act. 2:2), but curtains aren’t flapping, dust isn’t flying, hats aren’t blowing down the street. It’s only the sound, and that sound fills the house where they are gathered. These 120 believers are filled with the Holy Spirit and are given the ability to speak in languages that represented every nation that existed, but they hadn’t ever learned those languages (Act. 2:5, 8-11).

It is that sound of wind that draws the bewildered multitude to the apostles (Act. 2:6). The people from all those nations weren’t drawn like moths that saw a flame; no, they were drawn by the sound. And those people heard something even more amazing. They heard those believers declaring the mighty works of God in their native languages. For some, that message led to further curiosity, “What does this mean?” But for some, it led to mocking, “They are drunk and filled with wine” (Act. 2:13).

Now, consider that accusation as I slightly modernize it. Imagine you are there in that crowd. All the people from Italy are standing around someone who’s speaking Italian, and they’re listening intently because they can understand. All the Brazilians gather around the guy speaking Portuguese. All the people from France, and 22.8% of the Canadians who speak French, are listening to someone speaking French. You hear the guy who’s speaking American,[1] and you can understand everything because it is being spoken fluently. You hear the Gospel. You are told that God came in the flesh of Jesus. You hear that He suffered, bled, died on the cross, rose again from the dead, and ascended into heaven. And you hear that Christ did all of this to forgive you of your sins and give you eternal life.

After hearing that message in American, you go over to the people who speak Portuguese (because, of course, people who speak French are rude) and you ask in one of the ‘commercial, business’ languages – either Greek, Latin, or Aramaic – what they heard. And it’s the same Gospel message. The only difference was that they heard it in Portuguese – fluent, articulate Portuguese. So, it’s clear that these Galilean hillbillies are speaking languages they didn’t know. Your conclusion would probably not be, “Oh, they must be drunk.” Getting drunk doesn’t endow a person with fluency in another language. In short, it probably wasn’t the act of speaking in other languages that elicited that accusation; instead, it was probably the content of what was being said. “You’re saying that God came to earth as a human. But He did it to die, and by that death I’m forgiven? You must be drunk.”

But the sounds of Pentecost still aren’t done. Peter stands up, and here is where we see the most amazing thing about Pentecost. Peter doesn’t stand up to perform a visible sign. He doesn’t heal the sick, cast out demons, or raise the dead. Peter stands up to speak and preach a Holy Spirit-inspired sermon to the entire crowd. That should be astounding to us.

We know Peter and what kind of man he was just fifty-three days before Pentecost. A young servant girl had simply asked Peter if he knew who Jesus was, and that led to Peter denying Jesus three times (Mk. 14:66-72). But now Peter, filled with the Holy Spirit, preaches to a crowd of over 3,000 people. And it is a bold sermon. He doesn’t hold back. He does point to Jesus with the sermon, but not with loud Gospel overtones.

I’ll just summarize his sermon. “Men of Israel, Jesus was here just a short time ago. He did all sorts of miracles, and you know about them. You know He was sent by God, yet you put Him to death. Now, we have seen Him raised from the grave. This Jesus has now ascended into heaven. He has all authority in heaven and on earth, and He will use that authority for the sake of His Church until He has put all His enemies under His feet. That’s a big problem for you because you put Him to death and are His enemy. You’re in trouble. Amen.”

It’s a sermon that would have been highly criticized in seminary because it doesn’t really contain any Gospel. How does a guy like Peter preach like that, especially because he preaching that accusation against himself? Peter knows his own guilt. The only explanation is that Peter was filled with the Holy Spirit and emboldened in a remarkable way. The sermon itself is a miracle. But then, the response to that sermon is even more miraculous.

Over 3,000 people ask, “What can we do?” Before this, the crowds had heard some amazing things and wondered what it all meant, but now? Now, they are cut to the heart (Act. 2:37), and they recognize their guilt. This is amazing because most of them probably were not present in the crowd on Good Friday crying out, “Crucify, crucify Him.” The foremost expert on the history and practices of this time, a guy named Alfred Edersheim, says that there may have been some overlap but the majority of the people there for the Day of Pentecost weren’t there for the Passover. So, Peter is addressing a crowd of hardened sinners who could have offered all sorts of excuses arguing for their innocence of Jesus’ death. But over 3,000 of them don’t. They confess and repent with a simple, “What shall we do?” (Act. 2:37).

And Peter adds a postscript to his sermon and tells them, “Repent and be baptized in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit” (Act. 2:38). That very day, 3,000 souls were saved. 

They were given faith. They were also given and filled with the Holy Spirit. But that filling of 3,000 people with the Holy Spirit is so understated. Luke doesn’t tell us about another mightier wind that rushed even louder. No. They confess, repent, get Baptized, and are filled with the Holy Spirit. They are saved. How were they saved? Through the Holy Spirit’s work of pointing sinners to Jesus in simple preaching and through the Holy Spirit’s working through water and the Word. And through those means, the Holy Spirit creates faith.

Dear saints, that same miraculous work of the Holy Spirit through preaching continues today. In fact, that is what is happening even now. It is through God’s Word proclaimed by the mouth is this sinner that the Holy Spirit is creating, strengthening, and sustaining your faith. Right now, through God’s Word, the Holy Spirit is filling this place and pointing you to Jesus (Jn. 15:26).

Don’t think for one minute that the Holy Spirit isn’t working just because you don’t see whatever you think might be evidence of the Holy Spirit. The lasting legacy of Pentecost is that the Holy Spirit points sinners to Christ. Jesus Himself said that’s the Holy Spirit’s work (Jn. 15:26). Right here, right now, the Holy Spirit is calling, gathering, enlightening, sanctifying, and preserving you in the one true faith. He is here abundantly forgiving you of your sin. And the Holy Spirit invites you now to Jesus’ table where He will work through other means, through bread and wine which are Jesus’ Body and Blood. Come, receive, and be filled with the Holy Spirit. Amen.

The peace of God, which surpasses all understanding, will guard your hearts and minds in Christ Jesus. Amen.


[1] Yes, I know ‘American’ isn’t an official language.