Genesis 17:8 And I will give unto thee, and to thy seed after thee, the land wherein thou art a stranger, all the land of Canaan, for an everlasting possession; and I will be their God.
God gave Abraham great promises right from the beginning. He promised him and his children after him. His promise wasn’t a promise that would last for a lifetime but rather the lifetime of this earth, the lifetime of all life as humans know it.
He promised to give Abraham the land of Canaan. He promised to let his family keep it forever. He promised to be there God.
You can count on the fact that God is going to make this happen. People are going to see God give Israel all their land. They are going to see God become the God of His people again.
When God makes a promise He keeps it. He is God. He is good.
If you doubt this promise of God then you will have to doubt every other promise that He gave His people. You will have to doubt promises that He gave you. He is God and God that cannot lie.
You can trust Him to keep His Word!