7 but they had no child, for Elizabeth was barren. Both of them were advanced in years.
Luke 1:7 Cross References - Moffatt
Romans 4:19
19 His faith never quailed, even when he noted the utter impotence of his own body (for he was about a hundred years old) or the impotence of Sara's womb;
Hebrews 11:11
11 It was by faith that even Sara got strength to conceive, bearing a son when she was past the age for it — because she considered she could rely on Him who gave the promise.