John 3:6
That which has been born of the flesh is flesh; and that which has been born of the Spirit is spirit.
Romans 5:12
Therefore, as by one man sin came into the world, and death by sin; and thus death came upon all men, in that all sinned;
Ephesians 2:3
among whom we all indeed at one time lived in the lusts of our flesh, doing the will of the flesh and of the thoughts, and we were by nature the children of wrath, like the rest also:
Luke 1:35
And the angel responding said to her; The Holy Ghost shall come upon thee, and the power of the Highest shall overshadow thee; therefore, indeed, that holy thing that is begotten shall be called the Son of God.
Romans 8:8-9
But those being in depravity are not able to please God.