Genesis 21:10
Wherefore she said unto Abraham, Cast out this handmaid and her son. For the son of this handmaid shall not be heir with my son, even with Isaac.
John 8:35
And the bondservant abideth not in the house for ever: the son abideth for ever.
1 John 2:19
They went out from us, but they were not of us; for if they had been of us, they would have continued with us: but they went out , that they might be made manifest that they all are not of us.
Genesis 17:19
And God said, Nay, but Sarah thy wife shall bear thee a son; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant for his seed after him.
Genesis 17:21
But my covenant will I establish with Isaac, whom Sarah shall bear unto thee at this set time in the next year.
Genesis 20:11
And Abraham said, Because I thought, Surely the fear of God is not in this place. And they will slay me for my wife's sake.
Genesis 22:10
And Abraham stretched forth his hand, and took the knife to slay his son.
Genesis 25:6
But unto the sons of the concubines, that Abraham had, Abraham gave gifts. And he sent them away from Isaac his son, while he yet lived, eastward, unto the east country.
Genesis 25:19
And these are the generations of Isaac, Abraham's son. Abraham begat Isaac.
Genesis 36:6-7
And Esau took his wives, and his sons, and his daughters, and all the souls of his house, and his cattle, and all his beasts, and all his possessions, which he had gather in the land of Canaan; and went into a land away from his brother Jacob.
Matthew 8:11-12
And I say unto you, that many shall come from the east and the west, and shall sit down with Abraham, and Isaac, and Jacob, in the kingdom of heaven:
Matthew 22:13
Then the king said to the servants, Bind him hand and foot, and cast him out into the outer darkness; there shall be the weeping and the gnashing of teeth.
Galatians 3:18
For if the inheritance is of the law, it is no more of promise: but God hath granted it to Abraham by promise.
Galatians 4:7
So that thou art no longer a bondservant, but a son; and if a son, then an heir through God.
Galatians 4:22-31
For it is written, that Abraham had two sons, one by the handmaid, and one by the freewoman.
1 Peter 1:4
unto an inheritance incorruptible, and undefiled, and that fadeth not away, reserved in heaven for you,