Bible Verses About Levites: Exempt from enrollment for military duty

But those who were L'vi'im, according to the clan of their fathers, were not counted in this census;

because ADONAI had told Moshe,

"Do not include the clan of Levi when you take the census of the people of Isra'el.

Instead, give the L'vi'im charge over the tabernacle of the testimony, its equipment and everything else connected with it. They are to carry the tabernacle and all its equipment, serve in it and set up their camp around it.

When the tabernacle is to be moved onward, it is the L'vi'im who are to take it down and set it up in the new location; anyone else who involves himself is to be put to death.

The rest of Isra'el are to set up camp, company by company, each man with his own banner.

But the L'vi'im are to camp around the tabernacle of the testimony, so that no anger will come upon the assembly of the people of Isra'el. The L'vi'im are to be in charge of the tabernacle of the testimony."

This is what the people of Isra'el did - they did everything that ADONAI had ordered Moshe.