Cross reference
Numbers 1:49
49 Only the tribe of Levi thou shalt not number, neither shalt thou take the sum of them among the children of Israel;
Numbers 26:62
62 And they that were numbered of them were twenty and three thousand, every male from a month old and upward: for they were not numbered among the children of Israel, because there was no inheritance given them among the children of Israel.
Numbers 2:33
33 But the Levites were not numbered among the children of Israel; as Jehovah commanded Moses.