Bamidbar 1:47-49

Orthodox Jewish Bible

⁴⁷ But the Levi’im after the tribe of their avot were not numbered among them.

⁴⁸ For Hashem had spoken unto Moshe saying,

⁴⁹ Only thou shalt not number the tribe of Levi, neither take the sum of them among the Bnei Yisroel;