Luke 1:18-20

Zechariah said to the angel, “How can I know that what you say is true? I am an old man, and my wife is old, too.” The angel answered him, “I am Gabriel. I stand before God, who sent me to talk to you and to tell you this good news. Now, listen! You will not be able to speak until the day these things happen, because you did not believe what I told you. But they will really happen.”