So Abraham prayed unto God: and God healed Abimelech, and his wife, and his maidservants; and they bore children.
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Ephrem The Syrian
AD 373
Unless Sarah received renewed youth in the seed that she had received, Abimelech would not have desired a woman ninety years old. Then Abraham prayed and God healed Abimelech, his wife and his female slaves so that they bore children, because from the time [Abimelech] had decided to marry Sarah until he returned her, pangs of childbirth struck all the women in his household; they would kneel down, but they could not give birth.
Healed. It is not known how God afflicted Abimelech; but the women could not be delivered during the short time that Sara was detained: on her being set at liberty, they bore children. (Menochius)