All the male Levites a month old or more numbered 23,000. They were not counted along with the other Israelites because they received no inheritance among them.
The total number of Levites counted at the Lord’s command by Moses and Aaron according to their clans, including every male a month old or more, was 22,000.
But to the tribe of Levi he gave no inheritance, since the food offerings presented to the Lord, the God of Israel, are their inheritance, as he promised them.
All their service, whether carrying or doing other work, is to be done under the direction of Aaron and his sons. You shall assign to them as their responsibility all they are to carry.