John Chrysostom
Catena Aurea · Johannesevangelium 7
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. (But this spake he of the Spirit, which they that believe on him should receive: for the Holy Ghost was not yet given; because that Jesus was not yet glorified.)
(Hom. li. 1) He is speaking of spiritual drink, as His next words shew: He that believeth on Me, as the Scripture hath said, out of his belly shall flow rivers of living water. But where does the Scripture say this? No where. What then? We should read, He that believeth in Me, as saith the Scripture, putting the stop here; and then, out of his belly shall flow rivers of living water: the meaning being, that that was a right kind of belief, which was formed on the evidence of Scripture, not of miracles. Search the Scriptures, He had said before.