John 1:18 Meaning

16And of his fulness have all we received, and grace for grace.

17For the law was given by Moses, but grace and truth came by Jesus Christ.

18No man hath seen God at any time; the only begotten Son, which is in the bosom of the Father, he hath declared him.

19And this is the record of John, when the Jews sent priests and Levites from Jerusalem to ask him, Who art thou?

20And he confessed, and denied not; but confessed, I am not the Christ.