Imagine reading a sixteen-chapter letter from a friend. He opens with affection. He works through your problems one by one: division, lawsuits, sexual sin, marriage troubles, idolatry, disorder at the Lord's Supper, confusion about the resurrection. Page after page of correction, gentle and firm by turns.

Then near the end, the tone changes. The sentences get short. The verbs come fast. Five commands fired off in two verses, like a sergeant snapping at a unit before they march.

Be watchful, stand firm in the faith, act like men, be strong. Let all that you do be done in love. 1 Corinthians 16:13–14 (LSB)

That is how Paul writes as he gets to the ending of First Corinthians. Not with a soft farewell. With a charge. Every problem he has spent sixteen chapters addressing collapses if the Corinthians will obey these two verses. Every one of them.

I. Be Watchful

The Greek word here means stay awake. Keep alert. Don't doze off. It is the same word Jesus used in Gethsemane when He came back and found the disciples sleeping.

And He came to the disciples and found them sleeping, and said to Peter, "So, you men could not keep watch with Me for one hour? Keep watching and praying that you may not enter into temptation; the spirit is willing, but the flesh is weak." Matthew 26:40–41 (LSB)

Three of them. The inner circle. Peter, James, and John. They could not keep their eyes open while their Lord was sweating drops of blood a stone's throw away. The flesh is weak. That was true of them. It is true of us.

So Paul says to a Corinthian church surrounded by false teaching, surrounded by sexual confusion, surrounded by pagan worship on every street corner: be watchful. Pay attention. Don't drift.

Watch what, exactly? Three things at least. Watch your doctrine. Paul told the Ephesian elders the same thing in Acts twenty.

I know that after my departure savage wolves will come in among you, not sparing the flock; and from among your own selves men will arise, speaking perverse things, to draw away the disciples after them. Therefore be watchful, remembering that night and day for a period of three years I did not cease to admonish each one with tears. Acts 20:29–31 (LSB)

Wolves don't announce themselves. They look like sheep, appearing in either the pulpit or the pew. A sleeping church cannot tell the difference.

Watch your enemy. Peter says it plainly.

Be of sober spirit, be watchful. Your adversary, the devil, prowls around like a roaring lion, seeking someone to devour. 1 Peter 5:8 (LSB)

Lions don't hunt herds that are paying attention. They hunt the one that wandered off. The one that fell behind. The one with its head down and its eyes glazed.

Watch your own heart. Spiritual drift is rarely sudden. It is almost always slow. A neglected prayer life. A skipped Sunday. A growing fondness for a sin you used to hate. By the time you notice you are far from the Lord, you have been drifting for months.

So this is the question Paul is asking the Corinthians, and asking us: are you watching? Or are you sleeping? When was the last time you read your Bible like your soul depended on it? When did you last pray with any real fire? Is there a sin in your life right now that you would have wept over five years ago and now barely notice? If you cannot remember the last time you sat under the preaching of God's Word and felt anything, you are not watching. You are dozing. And lions hunt the dozing.

II. Stand Firm in the Faith

The Greek means hold your ground. Notice carefully: not stand firm in your faith, but stand firm in the faith. Definite article. There is a difference.

The body of doctrine that has been delivered. The truth once for all handed down to the saints. This is not first about the strength of your trust. It is first about the solidity of what you trust. A weak grip on a strong rock will save you. A strong grip on a rotten branch will not.

Think about why Paul says this to the Corinthians. He just spent the entire previous chapter, all fifty-eight verses of First Corinthians fifteen, defending the resurrection of Christ. Some of them were wobbling on it. Paul opens that chapter like this.

Now I make known to you, brothers, the gospel which I proclaimed as good news to you, which also you received, in which also you stand, by which also you are saved, if you hold fast the word which I proclaimed to you as good news, unless you believed for nothing. For I delivered to you as of first importance what I also received, that Christ died for our sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures... 1 Corinthians 15:1–4 (LSB)

Paul does not invent a gospel. He delivers what he received. The faith is not a feeling. It is a deposit. Christ died for sinners. He was buried. He rose on the third day. That is the ground you stand on.

Stand firm there. When the culture mocks the resurrection, stand. When a slick teacher on a podcast offers you a Christianity without a substitutionary atonement, stand. When the world demands you trade the exclusivity of Christ for a softer message, stand. When suffering tempts you to wonder if any of it was ever true, plant your feet on what was delivered and stand.

Here is the hard question: you cannot stand firm in what you do not know. So how well do you actually know your Bible? Could you defend the resurrection from the text? Could you tell a confused friend why Christ had to die? The Bereans of Acts seventeen were called noble because they searched the Scriptures daily to see if these things were so. Be a Berean.

III. Act Like Men

You may remember this command from the King James Version. "Quit ye like men," the old translators wrote. It made sense in 1611. Somewhere along the way the phrase lost its meaning entirely, and no dictionary is going to rescue you from it. What it meant then is what it means now: the Greek word andrizomai, to be courageous, to be manly. Conduct yourselves as men. Some translations render it "be brave."

Paul is not telling the women in the church to become men. He is reaching back into the Old Testament. This is the very word the Greek translators used when God charged Joshua at the start of the conquest, and when David charged Solomon at the end of his life. John Gill saw this clearly, noting that Paul "seems to have taken it" from the Septuagint of Joshua, Deuteronomy, and Chronicles. The phrase has a long history.

Hear this carefully: Joshua's charge came with a land promise to national Israel. That promise was given to Israel and stands with Israel. Paul is not transferring the land of Canaan to the church in Corinth. The church is not the new Israel. But the courage God required of Joshua to take that land is the same kind of covenant courage Paul now requires of Christ's church to stand for the gospel in a pagan city. The promise is Israel's. The pattern of courage is shared.

Be strong and courageous, for you shall cause this people to inherit the land which I swore to their fathers to give them. Only be strong and very courageous to be careful to do according to all the law which Moses My servant commanded you... Have I not commanded you? Be strong and courageous! Do not be in dread or be dismayed, for Yahweh your God is with you wherever you go. Joshua 1:6–7, 9 (LSB)

And it is the charge David gave Solomon on his deathbed.

"I am going the way of all the earth. So you shall be strong, and be a man." 1 Kings 2:2 (LSB)

Paul reaches for that same Old Testament voice and lays it on the Corinthian church. Be a man. Grow up. Stop acting like children. Why does that hit so hard for Corinth? Because Paul has already told them they were childish.

And I, brothers, was not able to speak to you as to spiritual men, but as to fleshly men, as to infants in Christ. I gave you milk to drink, not solid food, for you were not yet able to receive it. Indeed, even now you are still not able, for you are still fleshly. For since there is jealousy and strife among you, are you not fleshly, and are you not walking like mere men? 1 Corinthians 3:1–3 (LSB)

Babies. That is what Paul called them. Squabbling, divided, milk-drinking infants. Now at the end of the letter he says: enough. Act like men. Quit the petty fighting. Quit the tribal loyalties to favorite preachers. Quit the soft compromise with sexual sin. Quit the cowardice. Be men.

John Gill puts it bluntly. To act like men means to be "like men of wisdom and understanding; be not like children for non-proficiency, instability, and weakness." Childishness is instability. Manhood is the maturity that holds.

This is not about chest-thumping. It is moral courage. The willingness to stand when standing is costly. To speak when speaking will get you mocked. To love your wife sacrificially when the culture says self first. To raise your children in the discipline and instruction of the Lord. To say no to a sin you have said yes to a thousand times.

Men who are reading this, this one is for you in particular, though it applies to every Christian. Are you leading? In your home, in your marriage, in your prayer life, in your church? Or are you passive? Avoiding hard conversations because they cost you something? And to all of us as the church: are we acting like a mature body, or are we acting like the Corinthians? Squabbling, tribal, easily offended, easily distracted. The cure is the same one Paul gives. Grow up.

IV. Be Strong

Notice the voice of the verb. It is passive. The literal sense is closer to "be made strong." Be strengthened. The strength is received, not generated. It comes from outside you.

Paul writes the same command to the Ephesians, and there he tells you exactly where the strength comes from.

Finally, be strong in the Lord and in the might of His strength. Ephesians 6:10 (LSB)

In the Lord. In the might of His strength. Not in your willpower. Not in your discipline. Not in your record of past spiritual victories. In Him.

This matters because the previous three commands assume this one. You cannot watch in your own power. You will fall asleep. You cannot stand firm in your own power. The wind will blow you over. You cannot act like men in your own power. You will revert to childish flesh within the week. The first three commands are impossible. The fourth one tells you why they are not.

Christian strength is borrowed strength. The arms that hold you up in the storm are not your arms. They are His. The legs that stand firm when the floods come are not your legs alone. He is the one who keeps you on your feet.

Knees on the floor before feet on the ground. That is the order. The strongest believers are not the most charismatic or the most articulate. They are the ones who pray the most. Who know, deep in their bones, that without Him they can do nothing.

What battle are you fighting on willpower alone right now? A besetting sin. A hard marriage. A wayward child. A diagnosis. A grief. Have you actually taken it to the Lord? Not in a quick prayer at bedtime. Really taken it to Him. On your knees. With time. With tears if it comes to that. The strength is there. He is not stingy with it. Ask.

V. Let All That You Do Be Done in Love

This is the hinge. Without verse fourteen, verse thirteen produces a kind of Christianity nobody wants and Christ does not authorize.

Watching without love makes you a heresy hunter. Standing without love makes you a Pharisee. Acting like a man without love makes you a tyrant. Being strong without love makes you a bully.

Paul knows this. He has known it from the beginning of the letter. Three chapters earlier he wrote one of the most famous paragraphs in human history, and he wrote it to this church.

If I speak with the tongues of men and of angels, but do not have love, I have become a noisy gong or a clanging cymbal. And if I have the gift of prophecy, and know all mysteries and all knowledge; and if I have all faith, so as to remove mountains, but do not have love, I am nothing. And if I give all my possessions to feed the poor, and if I surrender my body to be burned, but do not have love, it profits me nothing. 1 Corinthians 13:1–3 (LSB)

Tongues without love? Noise. Knowledge without love? Nothing. Sacrifice without love? No profit. Paul will not let the Corinthians off the hook on this. And he will not let himself end the letter without saying it one more time. Earlier in chapter eight he had said it another way.

Now concerning things sacrificed to idols, we know that we all have knowledge. Knowledge puffs up, but love builds up. 1 Corinthians 8:1 (LSB)

Knowledge alone inflates a man. Love builds a church. The Corinthians had plenty of knowledge. They were proud of it. Paul keeps pressing on the same nerve. Love. And here at the end he says: every single thing you do, every command I have just given you, every battle you fight in this faith, drench it in love.

Watch in love. When you spot the false teacher, name him with grief, not glee. Stand in love. When you defend the truth, defend it for the sake of the people you are protecting, not for the sake of winning. Act like men in love. Lead your home for your wife and children, not over them. Be strong in love. The strength He gives you is for serving, not for ruling.

Look at the conflicts in your life right now. The relationship that is strained. The conversation you have been avoiding. The family member you have written off. The brother or sister at this church who frustrates you. Is the love of Christ in any of it? You may be right about the doctrine. You may be right about the situation. You may have every fact on your side. And if love is missing, Paul says you are a noisy gong. Truth without love is not Christian. It is just noise.

How much have we seen love repeated in the Scriptures as we have journeyed through these books? Reckon the Holy Spirit has something to tell the churches? Oh, beloved, we must not miss this.

The Gospel Behind the Commands

Look at what Paul has done. He has taken sixteen chapters of correction and pressed them into thirteen Greek words. Wake up. Stand on the gospel. Grow up. Be made strong in the Lord. Soak it all in love.

But here is the trouble. None of us are this Christian by nature. Not one. We are not watchful: by nature we are dead in trespasses, asleep in sin, blind to spiritual reality. We do not stand firm: we fall, we compromise, we trade the truth for whatever the culture is selling. We do not act like men: we act like rebels and run from God. We are not strong: our weakness is so deep we cannot even see it. And we do not love: we love ourselves, our reputations, our comfort.

Now look at Christ.

He watched and prayed in Gethsemane while the disciples slept. He stood firm when Satan offered Him every kingdom of the world if only He would bow. He acted like a man when He set His face like flint toward Jerusalem and would not turn back. He was strong when the wrath of God broke over Him and crushed Him. And every blow of the cross, every nail, every thorn, every breath He drew while bleeding for sinners, was love. Love for the Father. Love for His people. Love for you, if you will have Him.

If you are not in Christ, hear this. The standard of 1 Corinthians 16:13–14 is the standard you will be measured against on the last day. And you have not met it. Not one of us has. There is only one Man who has ever kept these commands perfectly, and His name is Jesus. He kept them in the place of sinners. He died bearing the curse for sinners who failed to keep them. And He rose from the grave to offer His perfect record to anyone who will turn from sin and trust Him. Today is the day. Come to Him.

And to those who are in Christ: the gospel is not "try harder at these five things." The gospel is that Christ kept them for you, died for your failure to keep them, and now by His Spirit produces them in you. The watching, the standing, the courage, the strength, the love. All of it is the fruit of His finished work, growing in you because you are united to Him.

Be watchful. Stand firm. Act like men. Be strong. And let all that you do be done in love.