'Heir' in the Bible

Abram said, "Behold, to me you have given no seed: and, behold, one born in my house is my heir."

Behold, the word of Yahweh came to him, saying, "This man will not be your heir, but he who will come forth out of your own body will be your heir."

Therefore she said to Abraham, "Cast out this handmaid and her son! For the son of this handmaid will not be heir with my son, Isaac."

Behold, the whole family has risen against your handmaid, and they say, 'Deliver him who struck his brother, that we may kill him for the life of his brother whom he killed, and so destroy the heir also.' Thus they would quench my coal which is left, and would leave to my husband neither name nor remainder on the surface of the earth."

for an unloved woman when she is married; and a handmaid who is heir to her mistress.

Of the children of Ammon. Thus says Yahweh: Has Israel no sons? has he no heir? why then does Malcam possess Gad, and his people well in its cities?