By faith Abraham, when he was called, obeyed by going out to a place which he was to receive for an inheritance; and he went out, not knowing where he was going. Hebrews 11:8
By faith he lived as an alien in the land of promise, as in a foreign land, dwelling in tents with Isaac and Jacob, fellow heirs of the same promise; Hebrews 11:9
By faith even Sarah herself received ability to conceive, even beyond the proper time of life, since she considered Him faithful who had promised. Hebrews 11:11
Now Abraham and Sarah were old, advanced in age; Sarah was past child bearing. Sarah laughed to herself, saying, “After I have become old, shall I have pleasure, my lord being old also?” Genesis 18:11-12
So Sarai said to Abram, “Now behold, the Lord has prevented me from bearing children. Please go in to my maid; perhaps I will obtain children through her.” And Abram listened to the voice of Sarai. Genesis 16:2