'Doorkeeper' in the Bible

It is like a man going on a journey. He left his house and put his slaves in charge, assigning to each his work, and commanded the doorkeeper to stay alert.

The doorkeeper opens the door for him, and the sheep hear his voice. He calls his own sheep by name and leads them out.

The girl who was the doorkeeper said to Peter, "You're not one of this man's disciples too, are you?" He replied, "I am not."