9 Bible Verses about Flesh As The Sinful Nature

And those persons who belong to Christ Jesus have crucified [i.e., put out of their lives, Col. 3:4ff] the sinful cravings of the body, along with their passionate desires.

Now those things done by the sinful, physical nature [of a person] are evident; they are these: sexual immorality, moral impurity, indecent conduct, idol worship, occultic practices, hatefulness, dissension, jealousy, angry outbursts, factious spirits, divisiveness, party spirits, envy, drunkenness, orgies, and things like these. I warn you again, as I have done before, that those people who practice such things will not inherit the kingdom of God.

All of us [Jews] also once lived among such people, fulfilling the improper cravings of our physical being and doing what our bodies and minds desired. In this natural [unconverted] state we were deserving of [God's] wrath, just like the rest [of mankind].

But clothe yourselves with the Lord Jesus Christ and do not make any plans for satisfying the strong desires of your flesh [i.e., your appetites for sinful pleasures].

Those who attempt to make a good impression by trying to force you to be circumcised really want only to avoid being persecuted for their commitment to Christ. For not even those who practice circumcision comply with [the requirements of] the law of Moses, yet they want you to be circumcised so they can take credit for this physical evidence [of your compliance with the law of Moses].

For what your body wants is in conflict with what the Holy Spirit wants [for you], and what the Holy Spirit wants conflicts with what your body wants, for these [two desires] are contrary to one another, so that you do not [always] do what you [really] want to.

For those people who are [controlled] by the flesh think about [i.e., desire] what the flesh wants; but those who are [controlled] by the Holy Spirit [desire] what the Holy Spirit wants. For the one whose mind is [controlled] by the flesh will suffer [spiritual] death; but the one whose mind is [controlled] by the Holy Spirit will enjoy [never ending] life and peace. This is because the one whose mind is [controlled] by the flesh is an enemy of God; for he is not obedient to God's law, and in fact, cannot obey it.read more.
And those people who are living according to the flesh cannot please God. But if the Spirit of God [truly] lives in your heart, you are not [being controlled] by the flesh, but by the Holy Spirit. But if any person does not have the Spirit of Christ [living in him], he does not belong to Christ.

If he engages in things to satisfy his own sinful desires, he will be [spiritually] destroyed for such conduct, but the one who engages in things to please the Holy Spirit will receive never ending life [as a result].

For when we were in the flesh [i.e., before conversion], our sinful desires, aroused by [the restrictions of] the law of Moses, worked in our bodies to produce activity that led to [spiritual] death.