||[During their duty period] they shall perform their appointed tasks, serving their brethren [the priests] in the Communion Tent. They shall not, however, participate in the divine service. This is what shall be done for the Levites as far as their appointed tasks are concerned.
Vesheret et-echav be'Ohel Mo'ed lishmor mishmeret va'avodah lo ya'avod kachah ta'aseh la-Levi'im bemishmerotam.
|During their duty period|
Or, 'They shall then perform their appointed tasks with their brethren in the Communion Tent, but they shall not do any [physical] labor' (Rashi; Rashbam).