Numbers 1:44-49

International Standard Version

⁴⁴ These individuals were the ones whom Moses and Aaron registered from the twelve leaders of Israel, each person from his ancestral house. ⁴⁵ Everyone was numbered from the descendants of Israel, from their ancestral houses, from all the men who were 20 years and above and who could serve in the army. ⁴⁶ The total of all those who were numbered was 603,550.

Exemption of the Tribe of Levi from the Census

⁴⁷ The descendants of Levi were not counted according to their ancestral houses ⁴⁸ because the Lord had ordered Moses: ⁴⁹ “Be sure not to number or count the tribe of Levi with the rest of the Israelis.