TSK · Genesis 25:21

Sarai was barren. She had no child.

Sarai said to Abram, "See now, Yahweh has restrained me from bearing. Please go in to my handmaid. It may be that I will obtain children by her." Abram listened to the voice of Sarai.

God remembered Rachel, and God listened to her, and opened her womb.

She vowed a vow, and said, "Yahweh of Armies, if you will indeed look on the affliction of your handmaid, and remember me, and not forget your handmaid, but will give to your handmaid a boy, then I will give him to Yahweh all the days of his life, and no razor shall come on his head."

They were helped against them, and the Hagrites were delivered into their hand, and all who were with them; for they cried to God in the battle, and he was entreated of them, because they put their trust in him.

So we fasted and begged our God for this: and he was entreated of us.

You who hear prayer, to you all men will come.

Behold, children are a heritage of Yahweh. The fruit of the womb is his reward.

What the wicked fear, will overtake them, but the desire of the righteous will be granted.

Then you shall call, and Yahweh will answer; you shall cry, and he will say, 'Here I am.' "If you take away from the midst of you the yoke, the putting forth of the finger, and speaking wickedly;

But they had no child, because Elizabeth was barren, and they both were well advanced in years.

Not only so, but Rebecca also conceived by one, by our father Isaac.