11 And by faith Sarah herself received power unto the conception of seed, even past the time of age, since she considered him faithful who had promised.
Hebrews 11:11 Cross References - Godbey
Luke 1:36
36 And behold Elizabeth thy kinswoman, indeed, herself having conceived a son in her old age; and this is the sixth month, to her who is called barren.
Romans 4:20-21
Hebrews 10:23
23 and washed as to our body with purifying water: let us hold fast the testimony of hope steadfast; for the one having promised is faithful;