Echosaber
According to the Bible, God struck Zechariah, the father of John the Baptist, mute because he doubted the angel Gabriel's announcement that his wife Elizabeth would conceive a son in her old age. He remained mute until John was born. While the Bible does not specify the time that God struck Zechariah mute for it does specify that he was mute until John was born. Given that the conception would have happened shortly after the angel Gabriel announced it to Zechariah, the time frame would have been approximately nine months.