Abraham fell facedown. Then he laughed and said to himself, “Can a child be born to a man who is a hundred years old? Can Sarah give birth at the age of ninety?” ... So Abraham was ninety-nine years old when he was circumcised,
But they had no children, because Elizabeth was barren, and they were both well along in years. ... “How can I be sure of this?” Zechariah asked the angel. “I am an old man, and my wife is well along in years.” ... Look, even Elizabeth your relative has conceived a son in her old age, and she who was called barren is in her sixth month.
Against all hope, Abraham in hope believed and so became the father of many nations, just as he had been told, “So shall your offspring be.” Without weakening in his faith, he acknowledged the decrepitness of his body (since he was about a hundred years old) and the lifelessness of Sarah’s womb. Yet he did not waver through disbelief in the promise of God, but was strengthened in his faith and gave glory to God, being fully persuaded that God was able to do what He had promised.
By faith Sarah, even though she was barren and beyond the proper age, was enabled to conceive a child, because she considered Him faithful who had promised. And so from one man, and he as good as dead, came descendants as numerous as the stars in the sky and as countless as the sand on the seashore. ... and in a sense, he did receive Isaac back from death.
Rachel said to her father, “Sir, do not be angry that I cannot stand up before you; for I am having my period.” So Laban searched, but could not find the household idols.
When a woman has a discharge consisting of blood from her body, she will be unclean due to her menstruation for seven days, and anyone who touches her will be unclean until evening.