John 7:37-38

37On the last and greatest day of the festival, Jesus stood and said in a loud voice, “Let anyone who is thirsty come to me and drink. 38Whoever believes in me, as Scripture has said, rivers of living water will flow from within them.” Or me. And let anyone drink 38 who believes in me.” As Scripture has said, “Out of him (or them) will flow rivers of living water.”