'Gatekeeper' in the Bible

The king responded, "If he's alone, he's bringing some news to report." As the man continued to draw near and approach the palace, the watchman observed another man running. So he called out to the gatekeeper, "There's another man running by himself!" The king replied, "He's also bringing some news to report!"

Meshelemiah's son Zechariah was gatekeeper at the entrance to the Tent of Meeting.

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.