John 3:6
That which is born of the flesh is flesh; and that which is born of the Spirit is a spirit.
Romans 5:12
Therefore, as through one man sin entered into the world and death through sin, and so came upon all men because all sinned,??13 for till the law there was sin in the world, but sin is not accounted where there is no law
Ephesians 2:3
among whom also we all formerly lived in the desires of our flesh, performing the wishes of the flesh and the mind, and were by nature children of wrath even as others;
Luke 1:35
And the angel answered and said to her, The Holy Spirit shall come upon you, and the power of the Most High shall overshadow you; and on that account the holy child shall be called the Son of God.
Romans 8:8-9
And they that are in the flesh cannot please God.