Do not live according to the flesh but according to the Spirit

Romans 8:1-21

Through Christ Jesus the law of the Spirit who gives life has set you free from the law of sin and death. For what the law was powerless to do because it was weakened by the flesh, God did by sending his own Son in the likeness of sinful flesh to be a sin offering. And so he condemned sin in the flesh, in order that the righteous requirement of the law might be fully met in us, who do not live according to the flesh but according to the Spirit.

But if Christ is in you, then even though your body is subject to death because of sin, the Spirit gives life because of righteousness. 

You, however, are not in the realm of the flesh but are in the realm of the Spirit, if indeed the Spirit of God lives in you. And if anyone does not have the Spirit of Christ, they do not belong to Christ.

The Spirit you received brought about your adoption to sonship. And by him we cry, “Abba, Father.” The Spirit himself testifies with our spirit that we are God’s children. Now if we are children, then we are heirs—heirs of God and co-heirs with Christ, if indeed we share in his sufferings in order that we may also share in his glory.

For the creation was subjected to frustration, not by its own choice, but by the will of the one who subjected it, in hope that the creation itself will be liberated from its bondage to decay and brought into the freedom and glory of the children of God.

Why?

How great are those who have the Spirit of the Lord, even we, who are creation, are subjected to frustration, not by our own choice, but by the will of the one who subjected it. 

We no longer belong to this world, but we are sons of the Lord, we may call the Lord Abba, Father, for the Spirit himself testifies with our spirit that we are God's children.

How?

Keep this holy identity in Jesus Christ, we may have eternal life in the future and joy in this world.