John 7:39

39 Jesus was speaking about God's Spirit, who would come to people some time after that. Those people who believed in Jesus would receive God's Spirit at that later time. But God had not yet given his Spirit to people, because he had not yet raised Jesus back up to heaven.

7:39Many verses in the Old Testament speak about ‘water’ that gives us life. See Isaiah 44:3; 58:11 and Zechariah 13:1; 14:8. The Jews would read these verses aloud at the Festival of Tabernacles.