'Flesh' in the Bible

among whom all of us also formerly lived out our lives in the cravings of our flesh, indulging the desires of the flesh and the mind, and were by nature children of wrath even as the rest

Therefore remember that formerly you, the Gentiles in the flesh -- who are called "uncircumcision" by the so-called "circumcision" that is performed on the body by human hands --

when he nullified in his flesh the law of commandments in decrees. He did this to create in himself one new man out of two, thus making peace,

For this reason a man will leave his father and mother and will be joined to his wife, and the two will become one flesh.

For our struggle is not against flesh and blood, but against the rulers, against the powers, against the world rulers of this darkness, against the spiritual forces of evil in the heavens.