Joseph Benson's Commentary of the Old and New Testaments - John 1:30-34
John 1:30-34. This is he, &c. I now point out to you the very person of whom I formerly said, After me cometh a man which is preferred before me Being incomparably greater and more excellent than I; for he was That is, he existed; before me Dr. Hammond abundantly vindicates this interpretation. Had πρωτος , rendered before, signified chief here, as in some other places, εστι , is, not ην , was, would have been joined with it, and John would have said he is, and not he ... read more
Albert Barnes' Notes on the Whole Bible - John 1:33-34
The same said ... - This was the sign by which he was to know the Messiah. He was to see the Spirit descending like a dove and abiding on him. It does not follow, however, that he had no intimation before this that Jesus was the Christ, but it means that by this he should know it infallibly. From Matthew 3:13-14, it seems that John supposed, before the baptism of Jesus, that he claimed to be the Messiah, and, that he believed it; but the infallible, certain testimony in the case was the descent... read more