He was not the light, but came to bear witness about the light.
8. He was not that light. So far was John from needing commendation, that the Evangelist gives this warning, lest his excessive brightness might obscure the glory of Christ. For there were some who gazed so eagerly upon him that they neglected Christ; just as if a person, enraptured with beholding the dawning of the day, would not deign to turn his eyes towards the sun.
The evangelist designs to bring in John Baptist bearing an honourable testimony to Jesus Christ, Now in these verses, before he does this, I. He gives us some account of the witness he is about to produce. His name was John, which signifies gracious; his conversation was austere, but he was not the less gracious. Now, 1.
Commenting on John 1:6-14
He was not that light,.... He was a light; he was the forerunner of the sun of righteousness, the "phosphorus" of the Gospel day; he had great light in him; he knew that the Messiah was ready to come, and declared it; and upon his baptism he knew him personally, and signified him to others: he had great light into the person and work of...