Saints Zachariah and Elizabeth, the parents of Saint John Baptist, were considered as a deeply religious couple. They were also known as the last and greatest prophets.
Saint Elizabeth was the cousin of our Blessed Virgin Mary. She was already old and was known to be barren when she gave birth to St. John the Baptist as the angel that visited them foretold. St. Zachariah was a holy prophet and a priest in the temple of Jerusalem. When the angel visited them and foretold the prophecy about their son, St. Zacharia doubted this and thus, he was struck mute. He was mute until the birth of their son.
Little is known of the couple. Their lives can be found in the 1st chapter of Luke in the New Testament.