John 7:37-39 - The Promise Of The Spirit
37 In the last day, that great day of the feast, Jesus stood and cried, saying, If any man thirsteth, let him come to me, and drink. 38 He that believeth on me, as the scripture hath said, out of his belly shall flow rivers of living water. 39 (But this he spoke of the Spirit, which they that believe on him should receive, for the Holy Spirit was not yet given, because that Jesus was not yet glorified.)