Cross reference
John 4:11
11 The woman saith to him, `Sir, thou hast not even a vessel to draw with, and the well is deep; whence, then, hast thou the living water?
John 3:4
4 Nicodemus saith unto him, `How is a man able to be born, being old? is he able into the womb of his mother a second time to enter, and to be born?'
1 Corinthians 2:14
14 and the natural man doth not receive the things of the Spirit of God, for to him they are foolishness, and he is not able to know `them', because spiritually they are discerned;