John 7:37-39 - The Promise Of The Spirit
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.