2 Chronicles 23:5-7

New Revised Standard Version, Anglicised

⁵ one-third shall be at the king’s house, and one-third at the Gate of the Foundation; and all the people shall be in the courts of the house of the Lord. ⁶ Do not let anyone enter the house of the Lord except the priests and ministering Levites; they may enter, for they are holy, but all the other^[a] people shall observe the instructions of the Lord. ⁷ The Levites shall surround the king, each with his weapons in his hand; and whoever enters the house shall be killed. Stay with the king in his comings and goings.’