Acts 12:12-14

¹²Upon reflection he went to the house of Mary, the mother of John (the one called Mark), where a considerable number had gathered and were praying.

¹³When Peter knocked at the door of the gate, a servant girl named Rhoda came to answer.

¹⁴Upon recognizing Peter's voice, she was so glad she did not open the gate, but ran in and announced that Peter was standing before the gate!