John 7:37-39

Young's Literal Translation

³⁷ And in the last, the great day of the feast, Jesus stood and cried, saying, `If any one doth thirst, let him come unto me and drink;

³⁸ he who is believing in me, according as the Writing said, Rivers out of his belly shall flow of living water;'

³⁹ and this he said of the Spirit, which those believing in him were about to receive; for not yet was the Holy Spirit, because Jesus was not yet glorified.