Genesis 18:11; Hebrews 11:11-12

11 Now wAbraham and Sarah were old, advanced in years. The way of women had ceased to be with Sarah.

11 By faith ySarah herself received power to conceive, even when she was past the age, since she considered zhim faithful who had promised. 12 Therefore from one man, and ahim as good as dead, were born descendants bas many as the stars of heaven and as many as the innumerable grains of sand by the seashore.