John 6:37.
[Doubter.
One who is HONEST.]
“HOW MAY I KNOW THERE IS A GOD?"
AND the word was made flesh, and dwelt among us, (and we beheld His glory, the glory as of the only begotten of the Father), full of grace and truth.
John 1:14.
NO man hath seen God at any time, the only begotten Son which is in the bosom of the Father, He hath declared him.
John 1:18.
JESUS saith unto him, Thomas, because thou hast seen me, thou hast believed, blessed are they that have not seen and yet have believed.
John 20:29.
BUT these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through His name.