1 Corinthians 15:46

However that which is spiritual isn't first, but that which is natural, then that which is spiritual.

Romans 6:6

knowing this, that our old man was crucified with him, that the body of sin might be done away with, so that we would no longer be in bondage to sin.

Ephesians 4:22-24

that you put away, as concerning your former way of life, the old man, that grows corrupt after the lusts of deceit;

Colossians 3:9-10

Don't lie to one another, seeing that you have put off the old man with his doings,

Treasury of Scripture Knowledge

Summary

Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.

That which is natural

Bible References

That which is natural

Romans 6:6
knowing this, that our old man was crucified with him, that the body of sin might be done away with, so that we would no longer be in bondage to sin.
Ephesians 4:22
that you put away, as concerning your former way of life, the old man, that grows corrupt after the lusts of deceit;
Colossians 3:9
Don't lie to one another, seeing that you have put off the old man with his doings,