John 3:6
That which is born of the flesh, is flesh; and that which is born of the Spirit, is spirit.
Romans 5:12
So then as through one man sin entered into the world, and through sin death, and thus [death] came through unto all men, because all sinned
Ephesians 2:3
among whom even we all had our way of life in times past in the lusts of our flesh, fulfilling the desires of the flesh and of the thoughts, and were by nature children of wrath, even as others;
Luke 1:35
And the angel answering said to her, The Holy Spirit will come upon thee, and the power of the Most High will overshadow thee; wherefore the holy one that is to be born will be called the Son of God.
Romans 8:8-9
And they who are in the flesh cannot please God.