en_tn/num/04/05.md

When the camp prepares

Here "camp" refers to all of the people in the camp. Alternate translation: "When the people prepare" (See: rc://en/ta/man/translate/figs-metonymy)

to move forward

This refers to the people moving to another location. Alternate translation: "to move to another location" (See: rc://en/ta/man/translate/figs-idiom)

cover the ark of the testimony with it

The word "it" refers to the curtain that separated the most holy place from the holy place.