John 3:6
That, which is born of the flesh, is flesh; and that, which is born of the Spirit, is spirit.
Romans 7:18
For I know that in me (that is in my flesh) dwelleth no good: for to will is present with me, but how to perform that which is good, I find not.
Galatians 3:22
But the scripture hath shut up all under sin, that the promise by faith in Jesus Christ might be given to them that believe.
Ephesians 2:2-3
in which ye formerly walked after the manner of this world, according to the prince of the power of the air, the spirit that still operates in the children of disobedience:
1 John 1:8-10
If we say that we have no sin, we deceive ourselves, and the truth is not in us.