Thomson(i)
10 she said to Abraham, Send away this girl and her son; for the son of this girl shall not be heir with my son Isaak.
11 And the thing appeared very hard in Abraham's view, touching his son.
12 But God said to Abraham, Let not this respecting thy son and respecting the handmaid appear hard in thy view. Hearken to the voice of Sarah in whatever she may have said to thee. For in Isaak a seed shall be called for thee.