Romans 4:18-21

Moffatt(i) 18 For Abraham, when hope was gone, hoped on in faith, and thus became the father of many nations — even as he was told, So numberless shall your offspring be. 19 His faith never quailed, even when he noted the utter impotence of his own body (for he was about a hundred years old) or the impotence of Sara's womb; 20 no unbelief made him waver about God's promise; his faith won strength as he gave glory to God 21 and felt convinced that He was able to do what He had promised.