John Gill Commentary Leviticus 22:31

"Therefore shall ye keep my commandments, and do them: I am Jehovah." — Leviticus 22:31 (ASV)

Therefore shall you keep my commandments, and do them
Both priests and people, even all the commandments delivered at this time, as well as all others; these they were to observe and take notice of, and keep them in memory, and put them in practice: I [am] the Lord; (See Gill on Leviticus 22:30).