Genesis 21:10

10So she said to Abraham, a“Cast out this slave woman with her son, for the son of this slave woman shall not be heir with my son Isaac.”

Galatians 4:24-25

24Now this may be interpreted allegorically: these women are two bcovenants. cOne is from Mount Sinai, bearing children for slavery; she is Hagar. 25Now Hagar is Mount Sinai in Arabia;
Some manuscripts For Sinai is a mountain in Arabia
she corresponds to the present Jerusalem, for she is in slavery with her children.
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