Hebrews 11:8-12

By faith, Abraham, when he was called to go out to a place he was to receive as an inheritance, obeyed and went, not knowing where he was going. By faith, he lived as an alien in the land of promise, like a foreigner, living in tents. And so did Isaac and Jacob, who were heirs with him of the same promise. For he was looking for the city with foundations, a city designed and built by GOD. By faith, Sarah received the ability to conceive, and bore a child well past the proper time in life, since she counted him faithful who had promised. Therefore, from this one man, who was too old to have children, came descendants as numerous as the stars in the sky, and as countless as the sand on the seashore.