Hebrews 11:8-10

8 By faith, Abraham, when he was called, obeyed to go out to the place which he was to receive for an inheritance. He went out, not knowing where he went.  9 By faith, he lived as an alien in the land of promise, as in a land not his own, dwelling in tents, with Isaac and Jacob, the heirs with him of the same promise.  10 For he looked for the city which has the foundations, whose builder and maker is God.