Numbers 26:61-63

Complete Jewish Bible

⁶¹ but Nadav and Avihu died when they offered unauthorized fire before Adonai. ⁶² Those males one month old or more counted of the Levi were 23,000. These were not included in the census of the people of Isra’el, because no land for inheritance was given to them among the people of Isra’el.

⁶³ These are the ones counted by Moshe and El‘azar the cohen, who took a census of the people of Isra’el in the plains of Mo’av by the Yarden across from Yericho.