John Gill - Exposition
John Gill
But if ye believe not his writings,.... They believed them to be his writings, and that they were the word of God, and yet did not believe the things contained in them, respecting Christ; or did not see, and could not believe that they belonged unto, and were applicable to Jesus of Nazareth; and therefore it could not be supposed they would give credit to him, or his words: how shall ye believe...