'Guardians' in the Bible

Shallum son of Kore, son of Ebiasaph, son of Korah and his relatives from his ancestral household, the Korahites, were assigned to guard the thresholds of the tent. Their ancestors had been assigned to the Lord’s camp as guardians of the entrance.

David and Samuel the seer installed them in their positions of trust, so they and their descendants were in charge of the gates of the house of the LORD, that is, the House of the Tent, as guardians.

The guardians were stationed on four sides east, west, north, and south.

Berechiah and Elkanah were guardians of the ark;

Shebaniah, Joshaphat, Nethanel, Amasai, Zechariah, Benaiah, and Eliezer the priests were to blow the trumpets before the ark of God; Obed-Edom and Jehiel were also guardians of the ark.