Luke 1:5-7 (NKJV)
There was in the days of Herod, the king of Judea, a certain priest named Zacharias, of the division of Abijah. His wife was of the daughters of Aaron, and her name was Elizabeth. 6 And they were both righteous before God, walking in all the commandments and ordinances of the Lord blameless. 7 But they had no child, because Elizabeth was barren, and they were both well advanced in years.