1 Chronicles 6:48

Their brethren were appointed, &c. Such of them as had no skill in singing were otherwise employed; being porters, keepers of the vessels of the sanctuary, occupied in preparing the sacrifices, and such like things. It is observable, that in all the genealogies of the Levites, there is not a word said of the sons of Moses and their posterity, he having no ambition to prefer them unto any great office.