'Only begotten' in the Bible

And the Word became flesh, and dwelt among us (and we beheld his glory, glory as of the only begotten from the Father), full of grace and truth.

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

For God so loved the world, that he gave his only begotten Son, that whosoever believeth on him should not perish, but have eternal life.

He that believeth on him is not judged: he that believeth not hath been judged already, because he hath not believed on the name of the only begotten Son of God.