"the 7th month ... the 1st day of each month" The word "month" refer to those in the Hebrew calendar. (See: [[rc://en/ta/man/translate/translate-hebrewmonths]] and [[rc://en/ta/man/translate/translate-ordinal]])
This refers to the offerings the priests were to give every day. The grain offering and drink offering were to be offered with the regular burnt offering. AT: "the regular burnt offering, with the grain offering and drink offerings that accompany it" (See: [[rc://en/ta/man/translate/figs-possession]])
This can be stated in active form. AT: "you will obey Yahweh's decree" or "you will obey what Yahweh had decreed" (See: [[rc://en/ta/man/translate/figs-activepassive]])