It shall be for the priests that are sanctified of the sons of Zadok; who have kept my charge, who went not astray when the children of Israel went astray, as the Levites went astray.
Read Chapter 48
George Leo Haydock
Astray By this we see, that in the worst of times God always preserved some of the priests from going astray; and that the synagogue never fell so universally into idolatry, but that a remnant was still left free from this corruption. (Challoner)