When I say “sin has already been dealt with at the cross,” I’m talking about what Jesus accomplished
once for all in His death — not about whether believers should repent or avoid willful sin. We agree on repentance and obedience. I’m talking about the
legal side of sin, not the behavioral side.
Scripture teaches that the penalty, power, and charge of sin were handled at the cross before we were even born.
•
Penalty: “The wages of sin is death” — and Jesus died that death (Romans 6:23, Hebrews 2:9). •
Payment: “One sacrifice for sins forever” (Hebrews 10:12). •
Removal of the record: “Where remission of these is, there is no more offering for sin” (Hebrews 10:18). •
Power broken: “Sin shall not have dominion over you” (Romans 6:14).
So when I say sin has been dealt with, I mean:
Jesus already took the full penalty, ended the need for further sacrifice, and broke sin’s legal claim over us. That doesn’t mean we live however we want. It means our repentance flows from what He already finished — not from trying to pay for sin ourselves.
1. In Scripture, sin is first a condition, not an action
Before anyone
does anything sinful, Scripture says we are
“sold under sin” (Romans 7:14) and
“by nature children of wrath” (Ephesians 2:3).
That means sin is a
state of being, a
power, a
condition humanity inherited from Adam.
Actions come
out of that condition.
Jesus Himself said:
“A tree is known by its fruit.” (Matthew 12:33)
The fruit (behavior) reveals the tree (nature/condition).
2. Behavior is the expression of sin, not the essence
Lying, lust, anger, pride — those are
acts of sin. But the Bible treats them as
symptoms of a deeper root.
Paul says:
“Sin… dwells in me.” (Romans 7:17)
He doesn’t say “sinful behaviors dwell in me.” He says
sin itself — as a power — lives in the flesh.
So behavior is the
manifestation, not the definition.
3. Jesus dealt with sin at the root, not just the fruit
This is why the cross is so final.
If sin were only behavior, Jesus could have just taught better morals.
But He came to:
- take away the sin of the world (John 1:29)
- condemn sin in the flesh (Romans 8:3)
- put away sin by the sacrifice of Himself (Hebrews 9:26)
Those verses aren’t talking about behavior. They’re talking about the
power, guilt, and legal charge of sin.
4. After the cross, believers still commit sinful behaviors — but sin no longer defines them
This is the tension people often confuse.
- The nature of sin was crucified with Christ (Romans 6:6).
- The record of sin was wiped out (Colossians 2:14).
- The power of sin was broken (Romans 6:14).
- But the flesh still exists and can act out (Galatians 5:17).
So yes, sinful behaviors still happen — but they don’t come from a “sin nature” that still owns you. They come from the
flesh, which is weak, not evil in essence.
So is sin a behavior?
No — sin is a condition, a power, a principle. Behavior is just the outward expression of that condition.
That’s why Jesus had to deal with sin at the cross, not just teach us to behave better.
