The "old man" is a metaphor that refers to the person before he believes in Jesus. Paul describes our old sinful person as dying on the cross with Jesus when we believe in Jesus. You can translate this in an active form. AT: "our sinful person died on the cross with Jesus" (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-activepassive]])
This can be stated in active form. AT: "sin should no longer enslave us" or "we should no longer be slaves to sin" (See: [[rc://en/ta/man/translate/figs-activepassive]])
# we should no longer be enslaved to sin
Slavery to sin is a metaphor meaning having such a strong desire to sin that one is unable to stop himself from sinning. It is as if sin controls the person. AT: "we should no longer be controlled by sin" (See: [[rc://en/ta/man/translate/figs-metaphor]])