'Childless' in the Bible

And Abram said, Lord GOD, what wilt thou give me, seeing I go childless, and the steward of my house is this Eliezer of Damascus?

Isaac prayed to the Lord on behalf of his wife because she was childless. The Lord answered his prayer, and his wife Rebekah became pregnant.

Later, the LORD noticed that Leah was being neglected, so he made her fertile, while Rachel remained childless.

Their father Jacob said to them, "You are making me childless! Joseph is gone. Simeon is gone. And now you want to take Benjamin! Everything is against me."