Against all hope, Abraham in hope believed and so became the father of many nations, . . . Romans 4:18
God told Abraham clearly that he will be the father of many nations. God said, “I will make you very fruitful; I will make nations of you, and kings will come to you.” (Genesis 17:6) God changed his name from Abram, which means “exalted father”, which is pretty good already, to Abraham, meaning “father of many”, which is even better.