John 3:6
What is born of the flesh is flesh; and what is born of the Spirit is spirit.
Romans 5:12
Thus, then, sin came into the world through one man, and through sin came death and so death spread to all men, because all had sinned.
Ephesians 2:3
And among them we all once passed our lives, indulging the passions of our flesh, carrying out the dictates of our senses and temperament, and were by nature the children of wrath like all the rest.
Luke 1:35
"The Holy Spirit shall come upon you," said the angel, "and the power of the most High shall overshadow you, and therefore the holy offspring which is born, shall be called the son of God.
Romans 8:8-9
And they who are earthly minded cannot please God.