Hebrews 11:9-11

9By faith he dwelt 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 waited for the city which has foundations, whose builder and maker is God.

11By faith Sarah herself also received strength to conceive seed, and she bore a child when she was past the age, because she judged Him faithful who had promised.