There came a man sent from God, whose name was John. [Mal. 3:1.]
This man came to witness, that he might testify of the Light, that all men might believe in it [adhere to it, trust it, and rely upon it] through him.
He was not the Light himself, but came that he might bear witness regarding the Light.
There it was–the true Light [was then] coming into the world [the genuine, perfect, steadfast Light] that illumines every person. [Isa. 49:6.]