1 Chronicles 9:24

All these which were chosen to be porters in the gates were two hundred and twelve. These were reckoned by their genealogy in their villages, whom David and Samuel the seer did ordain in their set office.

So they and their children had the oversight of the gates of the house of the LORD, namely, the house of the tabernacle, by wards.

And their brethren, which were in their villages, were to come after seven days from time to time with them.

For these Levites, the four chief porters, were in their set office, and were over the chambers and treasuries of the house of God.