Read Luke 1:57-80
When an angel told Zechariah that his aged wife, Elizabeth, was pregnant, Zechariah began asking questions that betrayed his disbelief. It was then that Zechariah's voice failed him. Because of his lack of faith… his powers of speech were temporarily taken away.
In the gospel reading, Zechariah's voice is restored when he signals that his newborn son will be named "John" according to God's set plan and purpose. When Zechariah's tongue was loosed, he uttered a beautiful canticle that described the mission of the child whose birthday we celebrate.