'General' in the Bible

Hezekiah appointed the priestly divisions and the divisions of the descendants of Levi, each according to their service duties, including both priests and descendants of Levi who offered morning and evening burnt offerings, peace offerings, general ministry, thanksgiving, and praise in the gateways to the LORD's campgrounds.

Not all flesh is the same. Humans have one kind of flesh, animals in general have another, birds have another, and fish have still another.