John 7:37-39 - The Promise Of The Spirit
37 On the last day, which is the great day, of the feast, Jesus stood and cried aloud, saying, If any one thirst, let him come to me, and drink. 38 He that believeth in me, from within him, as the Scripture hath said, will flow rivers of living water. 39 But this he said of the Spirit, which those that believed in him were to receive; for the Spirit was not yet, because Jesus was not yet glorified.