After prophet Malaki, God didn’t appoint any one as prophet to Israelites for 400 years. During this time, people were waiting for Jesus Christ. Zachariah and his wife always prayed to God for coming of the leader had been promised. He and his wife were old, when God told them that give them a son and he will become prophet that paves the way for coming the main king (Jesus), Zachariah didn’t believe. God gave them a son called John. But Zachariah remained mute until his son’s birth because of doubting God.