Num 17:1-5
He commanded Moses to take twelve rods of the tribe-princes of Israel, one for the fathers’ house of each of their tribes, and to write upon each the name of the tribe; but upon that of the tribe of Levi he was to write Aaron’s name, because each rod was to stand for the head of their fathers’ houses, i.e., for the existing head of the tribe; and in the case of Levi, the tribe-head was Aaron. As only twelve rods were taken for all the tribes of Israel, and Levi was included among them, Ephraim and Manasseh must have been reckoned as the one tribe of Joseph, as in Deu 27:12. These rods were to be laid by Moses in the tabernacle before the testimony, or ark of the covenant (Exo 25:21; Exo 29:42). And there the rod of the man whom Jehovah chose, i.e., entrusted with the priesthood (see Num 16:5), would put forth shoots, to quiet the murmuring of the people. שׁכך, Hiph., to cause to sink, to bring to rest, construed with מעל in a pregnant signification, to quiet in such a way that it will not rise again.