KJV
John 1:18 No one has ever seen God. The only Son, God, who is at the Father's side, has revealed him.

NIV
John 1:18 No one has ever seen God, but God the One and Only, who is at the Father's side, has made him known.

NKJ
John 1:18 No one has seen God at any time. The only begotten Son, who is in the bosom of the Father, He has declared Him.

NLT
John 1:18 No one has ever seen God. But his only Son, who is himself God, is near to the Father's heart; he has told us about him.

RSV
John 1:18 No one has ever seen God; the only Son, who is in the bosom of the Father, he has made him known.