This Is What the Bible Calls

The old man:

Romans 6:6

For we know that our old self was crucified with him so that the body of sin might be done away with, that we should no longer be slaves to sin—

Ephesians 4:22

You were taught, with regard to your former way of life, to put off your old self, which is being corrupted by its deceitful desires;

Colossians 3:9

Do not lie to each other, since you have taken off your old self with its practices

Sin:

John 1:29

The next day John saw Jesus coming toward him and said, “Look, the Lamb of God, who takes away the sin of the world!

John 8:34

Jesus replied, “I tell you the truth, everyone who sins is a slave to sin.

Romans 6:4-8

4 We were therefore buried with him through baptism into death in order that, just as Christ was raised from the dead through the glory of the Father, we too may live a new life.

5 If we have been united with him like this in his death, we will certainly also be united with him in his resurrection.

6 For we know that our old self was crucified with him so that the body of sin might be done away with, that we should no longer be slaves to sin—

7 because anyone who has died has been freed from sin.

8 Now if we died with Christ, we believe that we will also live with him.

The body of sin:

Romans 6:6

For we know that our old self was crucified with him so that the body of sin might be done away with, that we should no longer be slaves to sin—