Abraham gave all he had to Isaac.
Genesis 25:5

"All that he had" doesn't mean Abraham's physical possessions because he counted his wealth as nothing. When we are all dead and turned to dust, Abraham's Covenant is the only thing we will still possess.

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The Only Enduring Legacy - American Torah

Abraham married three times, had at least eight children, traveled the known world, led an army, and accumulated fantastic wealth. He interacted with kings as an equal and was a personal friend of the Creator of heaven and earth. He lived a long and