Romans 8:15

So then, brothers, we are debtors, not to the flesh, to live after the flesh.

For if you live after the flesh, you must die; but if by the Spirit you put to death the deeds of the body, you will live.

For as many as are led by the Spirit of God, these are children of God.

The Spirit himself testifies with our spirit that we are children of God;

and if children, then heirs—heirs of God and joint heirs with Christ, if indeed we suffer with him, that we may also be glorified with him.

For I consider that the sufferings of this present time are not worthy to be compared with the glory which will be revealed toward us.