John 1:31

And I knew him not. — Better, and I also knew Him not; so again in John 1:33. The reference is to “whom ye know not” of John 1:26, and the assertion is not, therefore, inconsistent with the fact that John did know Him on His approach to baptism (Matthew 3:13, see Note). In the sense that they did not know Him standing among them, he did not know Him, though with the incidents of His birth and earlier years and even features he must have been familiar. It cannot be that the Son of Mary was unknown to the son of Elizabeth, though One had dwelt in Nazareth and the other “was in the deserts till the day of his showing unto Israel” (Luke 1:80; Luke 2:51). He knew not all, but there must have been many wondering thoughts of that wondrous life. Could it be the life that all looked for? but no; there was little of the Jewish idea of the Messiah in the carpenter of a country village (comp. Mark 6:3). What he did know was, that his own work as herald declared “that He should be made manifest to Israel,” and in that conviction he proclaimed the coming King, and began the Messianic baptism. The Person would be His own witness. Heaven would give its own sign to those who could spiritually read it. The Baptiser with the Spirit would Himself be so fully baptised with the Spirit coming upon and dwelling in Him, that to the spiritual eye it would take visual form and be seen “as a dove descending from heaven.”

Am I come. — Better, came.