The Great Gospel Exchange
(Revised and updated 11/07/2026)
Imagine a woman recently laid off from her job. She had spent her last penny. To make matters worse, she was scheduled to undergo a medical procedure in two weeks, and it would cost $1,000. And she had no insurance and no way to pay for it.
She was overwhelmed with distress.
When a few of her friends invited her on vacation, she hesitated—and rightly so. She had no money, and her friends knew nothing of her desperate circumstances. She was a very private person.
Nevertheless, knowing it was wrong, she found someone willing to cash a check she knew she couldn’t cover. With the money in hand, she reluctantly told her friends she would join them.
At first, she thoroughly enjoyed getting away from her distress. But the wrongdoing behind that bad check only compounded it, weighing heavily on her conscience. What would she do? I’ll deal with it when I get back, she thought.
Upon returning home, the inevitable happened. The check bounced, and she was charged a $35 insufficient-funds fee. She had spent all her money on vacation and had no overdraft protection.
Utterly devastated, she began sobbing uncontrollably. What was she going to do?
She knew her only hope was to plead with the bank. And that is precisely what she did, but to no avail. She had knowingly written a check she could not cover. The bank could not excuse her wrongdoing. Even though she explained that she desperately needed a medical procedure, no mercy was extended that day. Or so she thought.
As she walked toward her car, a Christian gentleman approached her. “I heard your story while I was in the bank,” he said.
Still sobbing, she managed to mutter something unintelligible. Little did she realize that this man was about to show her extraordinary mercy.
“I would like to help you,” he said gently.
With a bewildered look, she replied, “What did you say? You want to help me? Why would you do that? I’m guilty! I was wrong to write that check!”
She was right. She was guilty!
But so are we all: “For whoever keeps the whole law but fails in one point has become guilty of all of it” (James 2:10 ESV).
The compassionate man simply replied, “Come back inside with me.”
Curious and bewildered, she followed him.
He opened the door for her and led her to the teller station, where a man who knew her situation was waiting.
“How can I help you?” the teller asked.
The gentleman replied, “I would like to assume responsibility for her $35. I will pay it.”
The teller looked at him in disbelief, but he completed the transaction.
The woman could only stand there, humbled yet excited by what was happening.
“Okay, here is the proof of your transaction. Thank you,” he said.
The woman could hardly believe what was happening; in tears of joy, she stood there, humbled and overwhelmed by what this stranger had done for her.
The woman thanked the gentleman. But as she turned toward the door, assuming he was following her, he said, “Wait a minute. We’re not finished yet.”
She and the teller both turned toward him, puzzled.
“You still don’t have any money, do you? I overheard you say earlier that you needed $1,000 for a medical procedure.”
Their expressions of amazement deepened.
The gentleman then turned to the teller and said, “I would also like you to deposit this $1,000 in cash into her account.”
The money came from a Christmas bonus he had received from the school where he worked as a janitor. He had cashed the check earlier while listening to her story.
“Wait! You’re doing what?” the astonished woman asked.
The teller completed the transaction.
She could hardly comprehend what had just happened. He paid her $35 debt and, in turn, deposited $1,000 into her account to cover her procedure.
Who could imagine such love and mercy? Only God, who has “great love” and “rich mercy” (Ephesians 2:4).
As they walked out of the bank, she finally asked him why he had done this for her.
And this was his answer:
“What just happened inside the bank was an illustration of the great gospel exchange.
“When I assumed responsibility for your debt, I took upon myself the obligation to pay it.”
“Similarly, Jesus Christ assumed the sin-debt of His people and paid it in full, as the first part of 2 Corinthians 5:21 states: ‘For He made Him who knew no sin to be sin for us.’”
God made His Son our sinless substitute to pay the penalty for our sins.
“But this illustration captures only one aspect of the great gospel exchange: the forgiveness of sins.
“You needed more than the removal of your debt. You also needed something you did not possess and could never earn. You needed money deposited into your account so you could pay for your medical procedure.
“Likewise, to enter the kingdom of heaven (Matthew 5:20), we need more than forgiveness. We need a righteousness we neither possess nor can produce by our own works. We need the righteousness of God, as the second part of 2 Corinthians 5:21 declares: ‘that we might become the righteousness of God in Him.’”
This is the second aspect of the great gospel exchange: the imputation of righteousness.
When viewed in its entirety, no passage captures both aspects of the great gospel exchange more clearly than 2 Corinthians 5:21.
“For He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him” (NKJV).
“When the Holy Spirit opens our eyes to our spiritual need (John 3:3), we understand that salvation requires more than the forgiveness of sins—it also requires the imputation of God’s righteousness. Through faith and union with Christ, we receive both and are justified by grace.
Justification carries two closely related yet distinct meanings: acquittal and the declaration of righteousness. In the former, God forgives our sins, releasing us from the guilt of condemnation; in the latter, God imputes His righteousness to our account by faith.”
“Do you see it?”
She was speechless!
A few weeks later, she spotted him at the grocery store. He asked how her procedure had gone.
“It went very well, thanks to you,” she replied with a smile.
He had been praying for her, both spiritually and practically.
She then told him something else.
“After that day at the bank, I went home and began reading my Bible, especially the verse in 2 Corinthains you mentioned.
“I was floored! I had never been taught these things in church. I finally understood that I needed more than forgiveness. I needed the imputation of the righteousness of God.
“Through the work of the Holy Spirit, my eyes were opened to the great gospel exchange.”
“I believe!”
What about you?