In these verses we have the account of Abraham's second marriage, and
the birth of several sons. It does not seem clear from the text whether
Keturah was a legal wife, or one of the Patriarch's numerous
concubines. Clarke inclines to the latter idea, on account of Abraham's
age, and then he gave all that be had to Isaac, and left Keturah's sons
to share with those of other concubines, to whom he gave gifts and sent
them away from his son Isaac to an eastern country. Abraham evidently
thought that the descendants of Isaac might be superior in moral
probity to those of his other sons, hence he desired to keep Isaac as
exclusive as possible. But Jacob and Esau did not fulfill the
Patriarch's expectations. Esau in selling his birthright for a mess of
pottage, and Jacob taking advantage of his brother in a weak moment,
and overreaching him in a bargain, alike illustrate the hereditary
qualities of their ancestors.



Genesis xxvi.



6 And Isaac dwelt in Gerar.

7 And the men of the place asked him of his wife; and he said, She is
my sister; for he feared to say, She is my wife; lest, said he, the men
of the place should kill me for Rebekah; because she was fair to look
upon.

9 And Abimelech called Isaac, and said Behold, or a surety she is thy
wife; and how saidst thou, She is my sister? And Isaac said unto him,