The sermon opens with a reading of Matthew 20:1-16, the parable of the workers in the vineyard, continuing a series on the parables of Christ. The preacher poses a direct question to the congregation: if everyone ends up receiving the same wage of one denarius, would they rather be the worker hired at six in the morning or the one hired at the eleventh hour, five in the evening? Almost the whole congregation admits, honestly, they would choose the eleventh hour — far less labor for the same pay. The preacher recalls asking the same question to a large crowd some twenty years earlier, provoking a mentor's genuine grief, because this "honest" answer is in fact a dangerous one: it is the very attitude the parable rebukes.

The sermon retraces the parable's context: a vineyard owner goes out repeatedly through the day — at the first, third, sixth, ninth, and eleventh hours — to hire day laborers desperate for work, since going unhired for a day meant going hungry or falling into debt. Only the first group negotiates a fixed wage of one denarius, the standard daily wage; the later groups are simply promised "whatever is right." At day's end the owner instructs his foreman to pay the last-hired first, and all receive a full denarius. The first laborers, who worked a full twelve hours bearing the heat of the day, assume they will receive more and grumble when they do not. The owner's reply is unanswerable: he has not wronged them — they agreed to a denarius — and he is free to do as he wishes with what belongs to him. His piercing question, "Are you envious because I am generous?", exposes what is really happening in their hearts.

The preacher argues, citing New Testament scholar Robert Stein, that the natural sympathy readers feel for the first workers' complaint is itself an indictment: it reveals how little grace and mercy actually shape human hearts, and how deeply people still fail to grasp what it means to be saved by grace. This mirrors the elder brother in the parable of the prodigal son, who resents his father's mercy toward the returning son despite his own years of dutiful service. The sermon connects this directly to its narrative context in Matthew 19:27-30, where Peter asks what the disciples will gain for having left everything to follow Jesus — a question the parable answers and simultaneously warns against, since Jesus closes both passages with the reversal, "the last will be first, and the first will be last."

The sermon names the underlying problem as "the economy of exchange" — the instinctive human conviction that there is no such thing as a free lunch, that reward must always be proportional to what is given or sacrificed. A vivid illustration follows: a boy shares his lunch with an old woman who turns out to be a disguised angel granting one wish; because he had only given her half his chocolate bar, the sports car he wishes for appears cut cleanly in half. When this transactional logic is applied to one's relationship with God, the sermon warns, it destroys the relationship and produces a hard, ungracious heart — precisely the sin of the first laborers, who fail to recognize that even their own wage was pure grace, not strict entitlement.

Crucially, the sermon insists the vineyard owner's generosity does not violate justice; grace and justice are not in tension, and the parable itself proves God can be both fully just and fully gracious. This turns to Romans 3:25-26, where Christ's atoning death demonstrates God's justice precisely so that God may be "just and the justifier" of those who have faith. The sermon illustrates the tension these verses resolve through the story of David, Bathsheba, and Uriah: when Nathan's parable exposes David's sin, David's own sense of justice demands the guilty man's death — yet God forgives him. Standing in Uriah's place, forgiveness alone would seem grossly unjust. The resolution, the sermon explains, is that Christ's atonement at the cross fully satisfies the justice David's sin deserved, so that God remains just even while justifying sinners united to Christ by faith — a truth also affirmed in 1 John 1:9, that God is "faithful and just" to forgive those who confess.

The sermon closes by urging the congregation to see themselves as the eleventh-hour workers, whatever time is left to them in service being entirely gift, not merit. Any service that is truly pleasing to God, the preacher stresses, is service performed not by human strength but empowered by God's own grace at work within — echoing Paul's confession that he worked harder than all the apostles, "yet not I, but the grace of God with me." True gratitude and humble service flow only from grasping that one's very existence, salvation, and capacity to serve are wholly gifts of grace, received as the congregation prepares to come to the Lord's Table.

Bible Verses Used

• Matthew 20:1-16: the parable itself — the vineyard owner's equal payment to all laborers regardless of hours worked, and his rebuke, "Are you envious because I am generous?", forms the sermon's central text on grace versus a transactional view of reward.

• Matthew 19:27-30: Peter's question about what the disciples will receive for leaving everything, and Jesus's warning that "many who are first will be last, and the last first," supplies the narrative context and reversal that frames the parable as both promise and warning.

• Romans 3:25-26: cited to show that Christ's atoning death demonstrates God's justice, so that God is shown to be both "just and the justifier" of those who believe — resolving how grace can be extended without compromising justice.

• 1 John 1:9: used to affirm that God is faithful and just to forgive confessed sin, because Christ has already satisfied divine justice on behalf of believers.

• 1 Corinthians 15:10 (referenced): Paul's confession that he worked harder than all the apostles, yet not he but the grace of God within him, is invoked to describe service rendered in God's strength rather than human merit.