If I bear witness of myself, my witness is not true.…
Just as Christ was not a Light, but the Light, so John was not a lamp, but the lamp; he was the friend and servant of the Bridegroom, who was to go before Him with the torch of his testimony. Burning like fire, his call to repentance penetrated into the hearts of men; brightly shining, full of gospel truth, he went before, lighting the way which led to the Lamb of God.
(R. Besser, D. D.)
Parallel VersesKJV: If I bear witness of myself, my witness is not true.