deep-rooted sinfulness. It seems that ‘Abraham is not such a saint as we might have concluded from chapter 18!’22 The final piece of evidence—that part of the underlying message of the Abraham narratives is that even the best of us does not change, and therefore are always incapable of the kind of consistent response to God’s covenantal initiatives that they deserve and demand—comes right at the end of his life. We read in Genesis 25:1 that ‘Abraham took another wife, whose name was Keturah’, who
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