Hebrews 11:8-10

8By faith Abraham, when he was called to move into a place which he should later receive for an inheritance, obeyed; and he went out, not knowing where he was going. 9By faith he sojourned in the land of promise, as in a foreign country, dwelling in tents with Isaac and Jacob, the heirs with him of the same promise: 10For he looked for a city which hath foundations, whose builder and maker is God.