This refers to all of the Israelites who were assembled in this place. Alternate translation: "all of the Israelites who were assembled there" (See: [[rc://en/ta/man/translate/figs-explicit]])
This idiom means that this action is something that Yahweh approves. Alternate translation: "if this is something that Yahweh our God approves" (See: [[rc://en/ta/man/translate/figs-idiom]])
This can be stated in active form. Alternate translation: "Let messengers tell them to join us" or "Let them join us" (See: [[rc://en/ta/man/translate/figs-activepassive]])