Genesis 26

It seems to me like Isaac was thinking about moving to Egypt because of the famine in the land. The Lord told him not to go to the rational place, the logical choice, and Isaac proved his faith bbt obeying the Lord. Thus he was tempted and tried like Abraham, and was given great blessings in return. At least this is how I read the situation.

Also interesting that Isaac faced the same situations as Abraham when it came to his wife and saying they were brother and sister. Could he also claim they were brother and sister without technically lying the way Abraham did?

Esau chose to give up his birthright AND married outside the covenant. We now know the things he did not value. (The things of God).