The Mixed Body

Today's Scripture

Matthew 13:28-30 — "So the servants said to him, 'Then do you want us to go and gather them?' But he said, 'No, lest in gathering the weeds you root up the wheat along with them. Let both grow together until the harvest, and at harvest time I will tell the reapers, "Gather the weeds first and bind them in bundles to be burned, but gather the wheat into my barn."'"

2 Timothy 2:19 — "But God's firm foundation stands, bearing this seal: 'The Lord knows those who are his,' and, 'Let everyone who names the name of the Lord depart from iniquity.'"

Romans 14:4 — "Who are you to pass judgment on the servant of another? It is before his own master that he stands or falls. And he will be upheld, for the Lord is able to make him stand."

The Big Idea

Jesus told us in advance that his church in this age would be a mixed field — real wheat and real weeds, growing side by side, hard to tell apart. The hunt for a perfectly pure church is a hunt for something Jesus said does not exist yet. And the hunter usually forgets to ask the scariest question: which one am I?

Reflection

A split over who was pure enough

Around the year 311, in Roman North Africa, the church faced an ugly question left over from years of persecution. Under imperial pressure, some church leaders had handed over copies of the Scriptures to be burned rather than die. The persecution ended. Then a bishop named Caecilian was ordained — installed in office — partly by a man suspected of being one of those who had caved.

A large group of African Christians refused to accept it. How could a traitor's hands pass on a holy office? They broke away and formed a rival church, named for their leader Donatus. The Donatists, as history calls them, were not villains in any simple sense. Many had suffered bravely under the same persecution. They were strict, disciplined, and serious. Their argument was simple: the true church is the pure church, and a church that tolerates compromised leaders has forfeited the name.

For the next hundred years, two churches sat side by side in the same towns — competing congregations, competing baptisms, each claiming to be the real bride of Christ. If that sounds distantly familiar, it should. The Donatist question is the perfectionist question, and it never dies: Can I belong to a church with hypocrites in it? With failed leaders in its history? Shouldn't I find the faithful remnant — the pure one?

Augustine, the bishop of Hippo and the greatest theologian of the early church, spent decades answering that question. And his answer began with a parable of Jesus.

Jesus said there would be weeds

In Matthew 13:24-26, Jesus tells of a farmer who sowed good seed and an enemy who crept in by night and sowed weeds among the wheat. The two plants grow up tangled together, nearly identical for most of the season. The servants ask the obvious, zealous question: do you want us to go pull the weeds now?

The master's answer is the whole point: "No, lest in gathering the weeds you root up the wheat along with them. Let both grow together until the harvest" (Matthew 13:29-30). Jesus then explains the symbols himself: "The field is the world, and the good seed is the sons of the kingdom. The weeds are the sons of the evil one... The harvest is the end of the age, and the reapers are angels" (Matthew 13:38-39). Mark the job assignments. The sorting is real, and it is coming. It happens at the end. It is done by angels, on the master's orders. It is never assigned to the servants — because the servants cannot reliably tell wheat from weeds, and their weeding would tear up God's own crop.

Augustine pressed this home against the Donatists. The mixed field is not the church failing; it is the church matching Jesus's own description of this age. And our eyesight is worse than we think. Augustine put it unforgettably:

"How many sheep there are without, how many wolves within!" — Augustine, Homilies on the Gospel of John

Some who look hopeless today will be sheep before the end. Some who sit in the front row, singing loudly, are wolves. We cannot see hearts. "The Lord knows those who are his" (2 Timothy 2:19) — the Lord knows. The verse does not say you know. That same verse adds the balance: "Let everyone who names the name of the Lord depart from iniquity." God's church is commanded to pursue holiness and practice discipline — Augustine never denied that, and neither does this plan. What no church is commanded to do is achieve a weed-free field before the harvest.

Charles Spurgeon, fifteen centuries later, gave the pastoral version with a smile:

"If I had never joined a church till I had found one that was perfect, I should never have joined one at all; and the moment I did join it, if I had found one, I should have spoiled it, for it would not have been a perfect church after I had become a member of it." — Charles Spurgeon, Sermon, 'The Best Donation'

Sit with the joke until it stings. The search for the pure church always quietly assumes the searcher belongs in it.

The weed in the mirror

That is the move the Donatist instinct never makes: turning the inspection inward. The separatist always casts himself as wheat. But Scripture keeps spinning us around to face the mirror. "Who are you to pass judgment on the servant of another? It is before his own master that he stands or falls" (Romans 14:4). Jesus is blunter: "Why do you see the speck that is in your brother's eye, but do not notice the log that is in your own eye?... First take the log out of your own eye" (Matthew 7:3-5).

He even told a parable aimed precisely at this — at "some who trusted in themselves that they were righteous, and treated others with contempt" (Luke 18:9-14). Two men pray. The respectable one thanks God he is not like other men. The despised tax collector will not even look up: "God, be merciful to me, a sinner!" (Luke 18:13). Jesus's verdict overturns every purity ranking: "this man went down to his house justified, rather than the other" (Luke 18:14). The man sure of his own wheat-status went home a weed. The man who confessed he was a weed went home as wheat.

Aleksandr Solzhenitsyn — a Russian writer who suffered for years in Soviet prison camps and became a Christian there — discovered why the sorting can never be done by humans:

"The line separating good and evil passes not through states, nor between classes, nor between political parties either — but right through every human heart." — Aleksandr Solzhenitsyn, The Gulag Archipelago

You cannot purify a church by removing the bad people, because the line does not run between people. It runs through the middle of every person in the building, including whoever is holding the clipboard. C.S. Lewis added the stranger twist — the holier you actually become, the less pure you will feel:

"When a man is getting better he understands more and more clearly the evil that is still left in him. When a man is getting worse, he understands his own badness less and less." — C.S. Lewis, Mere Christianity

Which means a growing Christian becomes more patient with a mixed church, not less. Confidence in one's own purity is not a sign of wheat. It is usually the opposite.

Grace for a field still growing

So why belong at all? If every congregation is mixed, why not keep your distance and keep your hands clean? Because the mixed field is still where the Master grows his crop. John Calvin — who had his own grave quarrels with the church of his day, as we will see tomorrow — still wrote of the visible church with shocking tenderness:

"There is no other way to enter into life unless this mother conceive us in her womb, give us birth, nourish us at her breast, and lastly, unless she keep us under her care and guidance." — John Calvin, Institutes of the Christian Religion

The imperfect, visible, weedy church is our mother — the place where God ordinarily feeds, teaches, corrects, and matures his children. You do not graduate from her by finding her flaws. And inside her care, God is doing something slow and certain with each true believer: "he who began a good work in you will bring it to completion at the day of Jesus Christ" (Philippians 1:6). The field looks chaotic in July. The farmer is not worried. He has seen the harvest.

In the meantime, our job is not sorting but confessing. "If we say we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, he is faithful and just to forgive us our sins" (1 John 1:8-9). The church is not a showroom of finished saints. It is a body of forgiven sinners under construction — people learning to say what John Newton, the slave-trader turned pastor who wrote "Amazing Grace," said near the end of his life:

"I am not what I ought to be, I am not what I want to be, I am not what I hope to be in another world; but still I am not what I once used to be, and by the grace of God I am what I am." — John Newton

That is wheat talking. Not purity — grace. And here is the gospel floor under the whole day: Jesus did not wait for a pure field before he loved it. He came into the mixed field, ate with tax collectors, kept a betrayer in his own twelve, and then died for people who were still weeds by every visible measure. The cross is God's answer to the Donatist anxiety: the church's holiness was never going to come from our purity. It comes from his.

Augustine's great book City of God watches history with that long view:

"Two cities have been formed by two loves: the earthly by the love of self, even to the contempt of God; the heavenly by the love of God, even to the contempt of self." — Augustine, City of God

Two cities, woven together through every nation, every era — and every congregation — until God himself separates them at the end. Until that day, the church on earth is a pilgrim community: not yet pure, truly his, traveling toward a holiness it has not reached. None of this cancels what Day 3 said; a field overrun by a different crop — a different gospel — is a different problem, and Augustine knew the difference. But weeds among wheat is not that problem. It is Tuesday in the kingdom of God.

Going Deeper

Tonight, instead of reviewing your church's flaws, pray the tax collector's prayer slowly five times: "God, be merciful to me, a sinner." Then name one person at church whose faith you have quietly graded as fake or shallow — and pray for God to bless them, specifically, the way you want to be blessed. You are not lowering your standards. You are handing the harvest back to the only one with eyes good enough to bring it in.