Under utterly hopeless circumstances he hopefully believed, so that he might become the forefather of many nations, in agreement with the words "Equally numerous shall your posterity be."

But what does it say? "The Message is close to you, in your mouth and in your heart;" that is, the Message which we are publishing about the faith--

Through faith even Sarah herself received strength to become a mother--although she was past the time of life for this--because she judged Him faithful who had given the promise.

General references

But you, brethren, like Isaac, are children born in fulfilment of a promise.