In the last day, that great day of the feast, Jesus stood and cried, saying, If any man thirst, let him come unto me, and drink. He that believes on me, as the scripture has said, out of his heart shall flow rivers of living water. (But this spoke he of the Spirit, whom they that believe on him should receive: for the Holy Spirit was not yet given; because that Jesus was not yet glorified.) Many of the people therefore, when they heard this saying, said, Of a truth this is the Prophet. (John 7:37-40)