John Gill Commentary Joshua 24:4

"And I gave unto Isaac Jacob and Esau: and I gave unto Esau mount Seir, to possess it: and Jacob and his children went down into Egypt." — Joshua 24:4 (ASV)

And I gave unto Isaac Jacob and Esau
When Rebekah was barren, so that the children appeared the more to be the gift of God; though Esau perhaps is mentioned, for the sake of what follows:

and I gave unto Esau Mount Seir to possess it ;
that Jacob and his posterity alone might inherit Canaan, and Esau and his seed make no pretension to it:

but Jacob and his children went down into Egypt ;
where they continued many years, and great part of the time in bondage and misery, which is here taken no notice of; and this was in order to their being brought into the land of Canaan, and that the power and goodness of God might be the more conspicuous in it.