Yes, according to Romans 6, our old sinful nature (the old Adam) is crucified with Christ and put to death.
Paul teaches that when we believe the gospel, God reckons our old Adam as dead, crucified with Christ. This death breaks the power and control of the sin nature, freeing us from its dominion. The old Adam is not improved or reformed but is executed, and the believer is no longer its slave.
Romans 6:6 — This verse explicitly states that our old man (sinful nature) is crucified with Christ, directly answering the question of its fate.
Romans 6:6 declares, "Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin." This teaches that the old sinful nature has been crucified with Christ, resulting in the destruction (or putting out of commission) of the body of sin. The purpose is that we should no longer be enslaved to sin. Verse 7 adds, "For he that is dead is freed from sin." This principle is that death breaks the connection to sin and its penalty. The old nature is dead, and thus the believer is freed from its control. Furthermore, Romans 6:4 connects this to baptism into Christ's death: "Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life." This indicates that the old nature's death leads to a new life.
Les Feldick emphasizes that the old sinful nature, which he calls the "old Adam," must be crucified and put to death because it is inherently sinful. He explains that death is the only way to break the old nature's claim and control over the believer. Using the illustration of a guilty person who dies before trial completes, he shows that death ends all legal proceedings; likewise, death frees us from old Adam's dominion. Les teaches that this death is not something we accomplish but is a work of God when we believe the gospel. Christ's death is our substitute, satisfying the requirement that "the soul that sinneth shall surely die." When old Adam is put to death, it is not the end of life but the beginning of a new relationship with God, as the new nature and the Holy Spirit take over.
Crucifixion means execution, a violent death. When Paul says our old man is crucified with Christ, he means that God has placed our sin nature on the cross with Christ. Les explains that crucifixion kills; it puts the old Adam out of commission. This is a legal and positional reality—God reckons it as done at the moment we believe.
Death completely breaks the legal claim and control that sin had over us. Les uses the illustration of a criminal who dies before his trial is finished: no more action can be taken against a dead person. Similarly, since our old Adam has died with Christ, sin's demand for our death is satisfied, and its power over us is broken. We are no longer obligated to serve the old nature.
This death is not experienced physically but is reckoned by faith. When we believe the gospel, God sees us as having died with Christ. Les emphasizes that this is not by our own effort but by God's work. As Galatians 2:20 says, "I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me." Faith is the channel through which we receive this accomplished fact.
With the old Adam crucified, the believer is no longer under its control. The new nature comes in, and the Holy Spirit takes residence in the believer's spirit. Les explains that this is why we can now live righteously, not by our own power, but by the indwelling Christ. The believer is left on earth to face life's pressures, but old Adam's power has been broken, and we live by faith in the Son of God.
The Necessity of Death for Sin
Les explains that God's law demands death for sin, but Christ's death is our substitute, so we do not have to die in ourselves.
Old Adam Must Be Crucified
Les clarifies that as a result of Adam's fall, all die physically, but the old Adam must be put to death through crucifixion, which is a work of God.
Dead to Old Adam
Les emphasizes that believers are dead to old Adam, and at the moment of belief, God reckoned him crucified, as Paul states in Galatians 2:20.
Crucifixion Kills the Old Man
Les teaches that when we are crucified with Christ, God kills the old Adam, putting him out of commission so that we no longer serve sin.
Power of Old Adam Broken
Les shows that once the old Adam is dead, its power over daily behavior is broken, and we live by the faithfulness of Christ, not by our own effort.
The Old Man Described
Les defines the 'old man' as the sin nature we are born with, and clarifies that when we believe the gospel, that old Adam is crucified.
Freed from Old Adam, New Nature Takes Over
Les explains that the only way to get rid of the old Adam is to reckon him crucified, and then the new nature and Holy Spirit can take over.
Only Death Breaks Adam's Control
Les insists that no human effort can break the control of the old Adamic nature; only Adam's death, realized through Christ's substitution, can do it.
Romans 6:6: Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin.
This is the core verse directly answering what happens to our old sinful nature—it is crucified.
Romans 6:7: For he that is dead is freed from sin.
Explains the consequence of that crucifixion: freedom from sin's control.
Romans 6:4: Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.
Connects the death of the old nature with the new life we are to walk in.
Les Feldick explains that God reckons the old Adam as dead at the moment of belief, and its power over us is broken. However, experientially, we still struggle with the old nature, but we are no longer under its control.
Because God has mandated that the soul that sinneth shall surely die. Since we are sinners, we must die, but Christ's death is our substitute. Our old Adam dies positionally with Christ, satisfying the requirement.
Being dead to sin means that the connection to the old Adamic nature is broken. Just as a dead person is free from any claims, we are freed from sin's dominion because the old nature has been crucified.
Watch the Teaching: Romans 6:7-12 — Can a Believer Still Sin After Being Set Free?