Psalm 105 explicitly remembers God’s covenant with Abraham and his oath to Isaac. The psalm is looking back on the patriarchal promises, including God’s reaffirmation to Isaac in Genesis 26 that the land, descendants, and blessing promised to Abraham would continue through him.

First Chronicles explicitly celebrates the covenant with Abraham and the oath to Isaac. Its worship text reaches back to the patriarchal promise preserved in Genesis 26, where God reaffirms Abraham’s covenant blessings directly to Isaac.

Isaac’s Gerar episode deliberately echoes Abraham’s earlier Abimelech story: fear for a wife’s safety, the claim that she is a sister, a foreign ruler discovering the truth, and divine protection preserving the covenant family. Genesis repeats the pattern with meaningful differences rather than simply telling the same event again.

Genesis 26 explicitly says God will establish with Isaac the oath sworn to Abraham, then repeats the Abrahamic promise of land, multiplied descendants like the stars, and blessing reaching all nations. Isaac’s covenant scene therefore carries the Abrahamic promise forward in the text’s own words.

Isaac is explicitly told not to go down into Egypt during famine, while Jacob later receives an explicit divine command not to fear going down into Egypt. The contrast shows that divine direction concerning the same destination differs by covenant moment and person.

Genesis 26 deliberately echoes Abraham’s original call language: Abraham is told to go to the land God will show him, while Isaac is told to dwell in the land God will tell him. The echo carries the Abrahamic land/seed/blessing promise forward while reversing the travel direction—Isaac must not go down to Egypt.