The whole gospel hangs on a single trade.
Strip Christianity down to its foundation and you will find a transaction. Not a fee, not a self-improvement plan, not a list of rules to keep. A trade. The most lopsided, undeserved, glorious trade ever made. Paul puts the entire thing into one sentence, and if you understand this sentence you understand the gospel:
He made Him who knew no sin to be sin on our behalf, so that we might become the righteousness of God in Him.
2 Corinthians 5:21 (NASB1995)
Read it again, because most people who have heard it their whole lives have never actually stopped on it. There are two halves, and they swap places. He who knew no sin was made to be sin. We who knew nothing but sin were made the righteousness of God. Everything that was ours went to Him. Everything that was His came to us. That is the great exchange, and there is no better news in the universe.
First, the Debt
A trade only makes sense when you know what you were holding. And what we were holding was a debt we could not pay. The Bible does not soften this. It states it.
For all have sinned and fall short of the glory of God.
Romans 3:23 (NASB1995)
All. Not most. Not the obviously wicked. All of us. The respectable and the ruined stand on the same side of that line. And the debt is not pocket change.
For the wages of sin is death, but the free gift of God is eternal life in Christ Jesus our Lord.
Romans 6:23 (NASB1995)
Wages. A wage is what you earn. Death is not a tragedy that happens to us from outside; it is the paycheck sin hands us for work we actually did. Here is the human problem in its starkest form: we owe a debt of death, and we have nothing in the account but more debt. No amount of good behavior pays down a wage already earned. You cannot out-give a deficit. You cannot be nice enough to reverse a verdict.
The One Who Knew No Sin
So the exchange could only work if Someone came to the table with no debt of His own. Anyone else stepping in to pay would simply owe his own wage. But there was One who owed nothing — who knew no sin, who never once earned the paycheck of death. The prophet saw Him centuries before He came:
All of us like sheep have gone astray, each of us has turned to his own way; but the LORD has caused the iniquity of us all to fall on Him.
Isaiah 53:6 (NASB1995)
The iniquity of us all fell on Him. Not His own iniquity — He had none. Ours. On the cross, God treated the sinless Son as if He had lived your life, so that He could treat you as if you had lived His. That is what theologians call substitution, and it is not a cold doctrine. It is the most personal thing that has ever happened to you. Your record was nailed to His cross. His record is now credited to your account.
Why He Did It
Step back and ask the obvious question. Why would the sinless One agree to be treated as sin? Not because we were worth it. Not because we cleaned ourselves up first and made the offer attractive. The timing of the trade tells you everything about the heart behind it.
But God demonstrates His own love toward us, in that while we were yet sinners, Christ died for us.
Romans 5:8 (NASB1995)
While we were yet sinners. Mid-rebellion. Before the apology, before the change, before any of us turned around. He did not wait at the top of the stairs for us to climb up to Him. He came down into the wreckage and made the trade while we were still making the mess. Love that waits for the beloved to deserve it is not the gospel. The gospel is love that moves first.
You Cannot Buy a Gift
Here is where people stumble. We are wired to pay our own way. Something in us would rather earn a smaller salvation than receive a free one, because earning lets us keep our pride. But the exchange is not for sale. It is a gift, and the only way to insult a gift is to try to pay for it.
For by grace you have been saved through faith; and that not of yourselves, it is the gift of God; not as a result of works, so that no one may boast.
Ephesians 2:8–9 (NASB1995)
Faith is simply the empty hand that receives. It adds nothing to the trade. It does not improve the offer or sweeten the deal. It just stops trying to pay and takes what Christ already purchased. The man who finally puts his wallet away and opens his hands is the man who walks away rich.
The Trade Is on the Table
So the decision is in front of you, and it is not complicated. You can keep clutching your record — the debt, the wage, the verdict you cannot reverse — and insist on settling it yourself. Or you can let go of it and receive His. There is no third option where you keep your sin and your righteousness too. The hands that hold the debt cannot also hold the gift.
If you have never made the trade, make it. Turn from your own way, the way Isaiah said every one of us has wandered, and trust the One on whom your iniquity was laid. And if you made it long ago, live like it actually happened. Stop trying to re-earn what was already given. The righteousness you stand in on your best day and your worst day is the same righteousness — His, credited to you, the day you believed. He became what you were so that you could become what He is. There is no better news than that. Rest in the trade.
Teaching the Word. Watching the Times.
— SmithForChrist