Genesis 20:18

18 for the Lord had completely closed all the wombs in Abimelech's household on account of Sarah, Abraham's wife.

Genesis 20:18 Meaning and Commentary

Genesis 20:18

For the Lord had fast closed up all the wombs of the house of
Abimelech
With large tumours probably, so that they could not cohabit with their husbands and conceive; nor could those that had conceived bring forth: and this disorder they were smitten with, because of Sarah Abraham's wife;
who was taken into the house of Abimelech, in order to be his; to rebuke and punish for which, and to convince of the evil of it, and cause to abstain from it, this disorder was inflicted on them.

Genesis 20:18 In-Context

16 And to Sarah he said, "Look, I am giving your brother 1,000 pieces of silver. It is a verification of your honor to all who are with you. You are fully vindicated."
17 Then Abraham prayed to God, and God healed Abimelech, his wife, and his female slaves so that they could bear children,
18 for the Lord had completely closed all the wombs in Abimelech's household on account of Sarah, Abraham's wife.
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