John 3:4
Nicodemus said to him, "How can a man be born when he is old? Can he enter a second time into his mother's womb, and be born?"
John 3:3
Jesus answered him, "Truly, truly, I tell you, unless one is born again he cannot see the Kingdom of God."
John 4:11-12
The woman said to him, "Sir, you have nothing to draw with, and the well is deep. From where then have you that living water?
John 6:53
Jesus therefore said to them, "Truly I tell you, unless you eat the flesh of the Son of Man and drink his blood, you do not have life in yourselves.
John 6:60
Therefore many of his disciples, when they heard this, said, "This is a hard saying. Who can listen to it?"
1 Corinthians 1:18
For the message about the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.
1 Corinthians 2:14
Now the natural man does not receive the things of the Spirit of God, for they are foolishness to him, and he cannot understand them, because they are spiritually discerned.