and ye have not known him: but I know him; and if I should say, I know him not, I shall be like unto you, a liar: but I know him, and keep his word.
Yet ye have not known him; but I know him: and if I should say, I know him not, I shall be a liar like unto you: but I know him, and keep his saying. (19) There is no right knowledge of God without Christ, neither is there any right knowledge of Christ without his word.
Amid the blazing golden lamps of the treasury at tabernacles, when all Jerusalem danced in joy, Christ proclaims in the most absolute sense: I am the Light of the World. The Baptist was a burning lamp sent to witness to that Light; but He alone is the true Light that lightens every man coming into the world, the Messiah promised of old.
AI summary
Commenting on John 8:12-59
I shall be a liar like unto you--now rising to the summit of holy, naked severity, thereby to draw this long dialogue to a head.