Jacob's family, the Israelite, are growing in number and in wealth but they are still in someone else's land. As Jacob is about to die, he has faith that God will fulfil ALL of his promise, and one day they will go out of Egypt to a land God has prepared for them. He has faith that God will answer, even if he is not around to see it himself.
Do I ever think about the fulfilment of God's promises for my great great grandchildren and beyond? I'm totally focused on the next few decades and if God is not something right now then I start to doubt it.
It's not all about me. God is working a plan throughout history and eternity.