John 7:37-39 New Revised Standard Version, Anglicised (NRSVA)
Rivers of Living Water
37 On the last day of the festival, the great day, while Jesus was standing there, he cried out, ‘Let anyone who is thirsty come to me, 38 and let the one who believes in me drink. As[a] the scripture has said, “Out of the believer’s heart[b] shall flow rivers of living water.”’ 39 Now he said this about the Spirit, which believers in him were to receive; for as yet there was no Spirit,[c] because Jesus was not yet glorified.
John 7:37-39 New International Version (NIV)
37 On 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. 38 Whoever believes in me, as Scripture has said, rivers of living water will flow from within them.”[a] 39 By this he meant the Spirit, whom those who believed in him were later to receive. Up to that time the Spirit had not been given, since Jesus had not yet been glorified.