2 Kings 11:7
the two divisions that would go off duty on the Sabbath are to guard the house of the LORD for the king.
Berean Standard Bible
And two parts of all you that go forth on the sabbath, even they shall keep the watch of the house of the LORD about the king.
The two companies of you, even all who go out on the Sabbath, shall keep the watch of the LORD’s house around the king.