'Only Son' in the Bible

He said, "Now take your son, your only son, whom you love, even Isaac, and go into the land of Moriah. Offer him there for a burnt offering on one of the mountains which I will tell you of."

He said, "Don't lay your hand on the boy, neither do anything to him. For now I know that you fear God, since you have not withheld your son, your only son, from me."

and said, "I have sworn by myself, says Yahweh, because you have done this thing, and have not withheld your son, your only son,

Daughter of my people, clothe yourself with sackcloth, and wallow in ashes! Mourn, as for an only son, most bitter lamentation; for the destroyer shall suddenly come on us.

I will turn your feasts into mourning, and all your songs into lamentation; and I will make you wear sackcloth on all your bodies, and baldness on every head. I will make it like the mourning for an only son, and its end like a bitter day.

I will pour on the house of David, and on the inhabitants of Jerusalem, the spirit of grace and of supplication; and they will look to me whom they have pierced; and they shall mourn for him, as one mourns for his only son, and will grieve bitterly for him, as one grieves for his firstborn.

Now when he drew near to the gate of the city, behold, one who was dead was carried out, the only son of his mother, and she was a widow. Many people of the city were with her.

The Word became flesh, and lived among us. We saw his glory, such glory as of the one and only Son of the Father, full of grace and truth.

No one has seen God at any time. The one and only Son, who is in the bosom of the Father, he has declared him.

For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life.

He who believes in him is not judged. He who doesn't believe has been judged already, because he has not believed in the name of the one and only Son of God.

By faith, Abraham, being tested, offered up Isaac. Yes, he who had gladly received the promises was offering up his one and only son;

By this God's love was revealed in us, that God has sent his one and only Son into the world that we might live through him.