Cross reference
Numbers 1:49
49 Only the tribe of Levi is not to be numbered among the children of Israel,
Numbers 26:62
62 Of these, twenty-three thousand males, from one month old and over, were numbered: they were not numbered with the rest of the children of Israel, for they had no heritage among the children of Israel.
Numbers 2:33
33 But the Levites were not numbered among the children of Israel, as the Lord said to Moses.