Read Numbers 8:20 Using Other Translations
And Moses, and Aaron, and all the congregation of the children of Israel, did to the Levites according unto all that the LORD commanded Moses concerning the Levites, so did the children of Israel unto them.
Thus did Moses and Aaron and all the congregation of the people of Israel to the Levites. According to all that the LORD commanded Moses concerning the Levites, the people of Israel did to them.
So Moses, Aaron, and the whole community of Israel dedicated the Levites, carefully following all the LORD ’s instructions to Moses.