John 7:37-38 - If anyone is thirsty, let him come to Me and drink

On the last and greatest day of the Feast, Jesus stood and said in a loud voice, "If anyone is thirsty, let him come to me and drink. Whoever believes in me, as the Scripture has said, streams of living water will flow from within him."

In the last day, that great day of the feast, Jesus stood and cried, saying, If any man thirst, let him come unto me, and drink. He that believeth on me, as the scripture hath said, out of his belly shall flow rivers of living water.

Now on the last day, the great day of the feast, Jesus stood and cried out, saying, "If anyone is thirsty, let him come to Me and drink. "He who believes in Me, as the Scripture said, 'From his innermost being will flow rivers of living water.'"

John 7:37-38

Commentary

On each day of the feast (the Jewish Feast of Tabernacles), the people came with palm branches and marched around the great altar. A priest took a golden pitcher filled with water from the Pool of Siloam, carried it to the temple, and poured it on the altar as an offering to God. This dramatic ceremony was a memorial of the water that flowed from the rock when the Israelites traveled through the wilderness. Perhaps at the very moment that the priest was pouring water on the altar, Jesus' voice rang out: If anyone thirsts, let him come to Me and drink.
Jesus' timing couldn't have been more perfect or His claim more explicit: He was declaring Himself to be none other than the long-awaited Messiah who would pour out the Holy Spirit, as many in the crowd immediately recognized (7:39-43). In many ways 7:37 acts as the pivot for John's account. From that point on, the hostility of Jesus' enemies mounted until they finally arrested Him (18:12) in vain hopes of shutting off the "living water."

Radmacher, E. D., Allen, R. B., & House, H. W. (1999). Nelson's new illustrated Bible commentary (Jn 7:37-39). Nashville: T. Nelson Publishers.