God makes it clear that Isaac is heir of the covenant which He had made with Abraham. God promises to be with Isaac and bless him, to give him numerous descendants and to give him the land. All nations would be blessed through this covenant. Abraham's obedience to God is highlighted here, as a reminder that Isaac also needed to continue in obedience.
Since chapter 25:19-34 has already told us of how the birthright was transferred to Jacob from Esau, why does Genesis 26 now go a generation back and remind us of how Isaac (before Jacob) was the heir of this covenant?
- These verses are probably included here so that we understand just what this covenant inheritance was all about.
- They also remind us of the immense riches that Esau was so casually spurning when he despised his birthright.