The story of the parents of John the Baptist. They were barren, but remained faithful to God and each other, despite Zacharias being able to put Elisabeth aside for not being able to have children and that barrenness was a curse from God. As the Scripture says: “And they were both righteous before God, walking in all the commandments and ordinances of the Lord blameless.” By this time they were “well stricken in years” so there was no hope of having a child either.
The description of Zacharias and Elisabeth are two people who are “waiting on the Lord”, not for any hope of specific temporal blessings, but in His will. They are serving Him and ready to serve Him more. Then He gives the signs for those who will see, the old lady past menopause and her old husband, both of them nice enough people, working about the Temple, but cursed by God without children. How many gossips ran their mouths about the “secret sin” of this couple? However, God was ready to move in a mighty way with this willing couple, both blessing them and making Himself known by marking out this child as something special.