John 3:4
Nicodemus says to Him, "How can a man he born when he is old? Can he enter a second time into his mother's womb, and he born?"
John 3:3
Jesus answered, and said to him, "Verily, verily, I say to you, unless one be born anew, he cannot see the Kingdom of God."
John 4:11-12
She says to Him, "Sir, Thou hast nothing to draw with, and the well is deep. Whence, therefore, hast Thou the living water
John 6:53
Jesus, therefore, said to them, "Verily, verily, I say to you, unless ye eat the flesh of the Son of Man, and drink His blood, ye have no life in yourselves.
John 6:60
Many, therefore, of His disciples, having heard this, said, "This is a hard saying! Who can hear it?"
1 Corinthians 1:18
For the word of the cross is to those who are perishing, foolishness; but to those who are being saved, it is the power of God.
1 Corinthians 2:14
But a natural man receives not the things of the Spirit of God; for they are foolishness to him; and he cannot know them, because they are spiritually judged.