'Only Begotten Son' in the Bible

Your high feasts will I turn to sorrow, and your songs to mourning: I will bring sackcloth upon all backs, and baldness on every head. Yea, such a mourning will I send them, as is made upon an only begotten son, and they shall have a miserable end.

Moreover, upon the house of David and upon the citizens of Jerusalem, will I pour out the spirit of grace and prayer, so that they shall look upon me, whom they have pierced: and they shall beweep him, as men mourn for their only begotten son: Yea, and be sorry for him, as men are sorry for their first child

Now when he came near to the gate of the city, behold, an only begotten son who died was being carried out for his mother. And she was a widow, and a considerable crowd of the city were with her.

And the Word (Christ) became flesh, and lived among us; and we [actually] saw His glory, glory as belongs to the [One and] only begotten Son of the Father, [the Son who is truly unique, the only One of His kind, who is] full of grace and truth (absolutely free of deception).

No man hath seen God at any time; the only begotten Son, which 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 in him should not perish, but have everlasting life.

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

By faith Abraham, when tried, offered up Isaac, and he who had received to himself the promises offered up his only begotten son,

In this was manifested the love of God toward us, because that God sent his only begotten Son into the world, that we might live through him.