'Only Son' in the Bible

And he said, Take now thy son, thine only son, whom thou lovest, Isaac, and get thee into the land of Moriah, and there offer him up for a burnt-offering on one of the mountains which I will tell thee of.

And he said, Stretch not out thy hand against the lad, neither do anything to him; for now I know that thou fearest God, and hast not withheld thy son, thine only son, from me.

and said, By myself I swear, saith Jehovah, that, because thou hast done this, and hast not withheld thy son, thine only son,

Daughter of my people, gird thee with sackcloth, and roll thyself in ashes: make mourning, as for an only son bitter lamentation; for the spoiler cometh suddenly upon us.

And I will turn your feasts into mourning, and all your songs into lamentation; and I will bring up sackcloth upon all loins, and baldness upon every head; and I will make it as the mourning for an only son, and the end thereof as a bitter day.

And I will pour upon the house of David and upon the inhabitants of Jerusalem the spirit of grace and of supplications; and they shall look on me whom they pierced, and they shall mourn for him, as one mourneth for an only son, and shall be in bitterness for him, as one that is in bitterness for his firstborn.

And as he drew near to the gate of the city, behold, a dead man was carried out, the only son of his mother, and she a widow, and a very considerable crowd of the city was with her.