John 7:37-39 Revised Standard Version Catholic Edition (RSVCE)
Rivers of Living Water
37 On the last day of the feast, the great day, Jesus stood up and proclaimed, “If any one thirst, let him come to me and drink. 38 He who believes in me, as[a] the scripture has said, ‘Out of his heart shall flow rivers of living water.’” 39 Now this he said about the Spirit, which those who believed in him were to receive; for as yet the Spirit had not been given, because Jesus was not yet glorified.
John 7:37-39 New King James Version (NKJV)
The Promise of the Holy Spirit
37 On the last day, that great day of the feast, Jesus stood and cried out, saying, “If anyone thirsts, let him come to Me and drink. 38 He who believes in Me, as the Scripture has said, out of his heart will flow rivers of living water.” 39 But this He spoke concerning the Spirit, whom those [a]believing in Him would receive; for the [b]Holy Spirit was not yet given, because Jesus was not yet glorified.