Romans 4:18-21

Sawyer(i) 18 who against hope believed in hope that he should become a father of many nations according to the saying shall your posterity be. 19 And being not weak in faith, he did not regard himself as dead, being now about a hundred years old, nor Sarah's incapacity for child-bearing, 20 and he did not doubt the promise of God by unbelief, but was strong in faith, giving glory to God, 21 being fully persuaded that what he had promised he was able to perform.