TSK · Genesis 16:1

And Sarai was barren; she had no child.

And Abram said, O Lord Jehovah, what wilt thou give me, seeing I go childless, and he that shall be possessor of my house is Eliezer of Damascus?

And God said unto Abraham, Let it not be grievous in thy sight because of the lad, and because of thy handmaid; in all that Sarah saith unto thee, hearken unto her voice; for in Isaac shall thy seed be called.

And Isaac entreated Jehovah for his wife, because she was barren: and Jehovah was entreated of him, and Rebekah his wife conceived.

And they had no child, because that Elisabeth was barren, and they both were [now] well stricken in years.

Which things contain an allegory: for these [women] are two covenants; one from mount Sinai, bearing children unto bondage, which is Hagar.