Through faith also Sara herself received strength to conceive, and was delivered of a child when she was past age, because she judged him faithful who had promised.
And the woman conceived, and bore a son at that time that Elisha had said unto her, according to the appointed time.
And, behold, your cousin Elizabeth, she has also conceived a son in her old age: and this is the sixth month with her, who was called barren.
That is, They who are the children of the flesh, these are not the children of God: but the children of the promise are counted for the descendants.
But he who was of the bondwoman was born after the flesh; but he of the free woman was by promise.
Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;)