Charles Ellicott Commentary John 7:40

"[Some] of the multitude therefore, when they heard these words, said, This is of a truth the prophet." — John 7:40 (ASV)

Many of the people therefore, when they heard this saying...—The reading of the best manuscripts is, “Some of the people therefore, when they heard these sayings.”

Of a truth this is the prophet—that is, the Prophet foretold by Moses in Deuteronomy 18:15. (Compare Notes on John 1:21; John 6:14.)