Melachim Bais 11:7-9

Orthodox Jewish Bible

⁷ And two companies of all you that go off duty on Shabbos, even they shall keep shomer the mishmeret Beis Hashem for HaMelech.

⁸ And ye shall surround HaMelech round about, every ish with his weapons in his yad; and he that cometh within the sederot (ranks), let him be slain; and be ye with HaMelech when he goeth out and when he cometh in.

⁹ And the commanders of hundreds did according to all things that Yehoyada HaKohen commanded; and they took every ish his anashim that were on duty on Shabbos, with them that should go off duty on Shabbos, and came to Yehoyada HaKohen.