Genesis 21:12

12But God said to Abraham, “Do not be upset
Heb “Let it not be evil in your eyes.”
about the boy or your slave wife. Do
Heb “listen to her voice.” The idiomatic expression means “obey; comply.” Here her advice, though harsh, is necessary and conforms to the will of God. Later (see Gen 25), when Abraham has other sons, he sends them all away as well.
all that Sarah is telling
The imperfect verbal form here draws attention to an action that is underway.
you because through Isaac your descendants will be counted.
Or perhaps “will be named”; Heb “for in Isaac offspring will be called to you.” The exact meaning of the statement is not clear, but it does indicate that God’s covenantal promises to Abraham will be realized through Isaac, not Ishmael.
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