A selection of verses showing the inevitable conflict between our natural way of living (the flesh) and God's way (the spirit).
Jesus makes it clear that there is a distinction between flesh and spirit:
6 That which is born of the flesh is flesh. That which is born of the Spirit is spirit.
He also points out the consequences of both ways of life. He tells us that we can be in the spirit by listening to what he says:
63 It is the spirit who gives life. The flesh profits nothing. The words that I speak to you are spirit, and are life.
The letters to the Romans and Galatians give us the consequences of both ways of life:
13 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.
8 For he who sows to his own flesh will from the flesh reap corruption. But he who sows to the Spirit will from the Spirit reap eternal life.
The letter to the Galatians tells us that there is tension between flesh and spirit and that naturally speaking the flesh will be the easier option:
17 For the flesh lusts against the Spirit, and the Spirit against the flesh; and these are contrary to one another, that you may not do the things that you desire.
These chapters have links to this theme: