They envied Moses also in the camp - They were envious of him, or rebelled against him, as assuming too much authority. See Numbers 16:1-2. The reference here is rather to the “result” of that envy in producing rebellion than to the envy itself. It is true, however, that the foundation of their opposition to him “was” envy.
And Aaron the saint of the Lord - That is, as set apart to the service of the Lord; or, as employed in holy things. The reference is to his “office,” not to his personal character.