Numbers 3:31

3:31 Their responsibilities included the ark, the table, the lampstand, the altars, and the utensils of the sanctuary with which they ministered, ¹  the curtain, and all their service. ² 

Numbers 3:36

3:36 The appointed responsibilities of the Merarites included the frames of the tabernacle, its crossbars, its posts, its sockets, its utensils, plus all the service connected with these things, ³ 

[3:31]  ¹ tn The verb is יְשָׁרְתוּ (yÿsharÿtu, “they will serve/minister”). The imperfect tense in this place, however, probably describes what the priests would do, what they used to do. The verb is in a relative clause: “which they would serve with them,” which should be changed to read “with which they would serve.”

[3:31]  ² tn The word is literally “its [their] service.” It describes all the implements that were there for the maintenance of these things.

[3:36]  ³ tn Heb “and all their service.” This could possibly be a hendiadys: “and all their working tools.” However, the parallel with v. 26 suggests this is a separate phrase.