'Gatekeeper' in the Bible

the watchman saw another man running. He called out to the gatekeeper, “Look! Another man is running alone!”“This one is also bringing good news,” said the king.

And they come in, and call unto the gatekeeper of the city, and declare for themselves, saying, 'We have come in unto the camp of Aram, and lo, there is not there a man, or sound of man, but the bound horse, and the bound ass, and tents as they are.'

Zechariah son of Meshelemiah was the gatekeeper at the entrance to the tent of meeting.

And Kore son of Imnah the Levite, the gatekeeper at the east, is over the willing-offerings of God, to give the heave-offering of Jehovah, and the most holy things.

It's to him the gatekeeper opens the gate, and it's his voice the sheep hear. He calls his own sheep by name and leads them out.

Peter, however, stood outside the gate. So this other disciple who was known to the high priest went out and spoke to the gatekeeper and brought Peter inside.