John 7:37-39 - The Promise Of The Spirit
37 On the last and most important day of the festival, Jesus stood up and shouted, "If anyone is thirsty, let him come to me and drink! 38 The one who believes in me, as the Scripture has said, will have rivers of living water flowing from his heart." 39 Now he said this about the Spirit, whom those who were believing in him were to receive, because the Spirit was not yet present and Jesus had not yet been glorified.