Hebrews 11:15-19

And indeed if they had been thinking of that country which they left, they would have had opportunity to return.

But as it is, they desire a better country, that is, a heavenly one. Therefore God is not ashamed to be called their God; for He has prepared a city for them.

By faith Abraham, when he was tested, offered up Isaac, and the one who had received the promises was offering up his only son;

it was he to whom it was said, “Through Isaac your descendants shall be named.”

He considered that God is able to raise people even from the dead, from which he also received him back as a type.