And ye shall know
to know (properly, to ascertain by seeing); used in a great variety of senses, figuratively, literally, euphemistically and inferentially
that I have sent
to send away, for, or out (in a great variety of applications)
a command, whether human or divine (collectively, the Law) -- (which was) commanded(-ment), law, ordinance, precept.
unto you that my covenant
a compact (because made by passing between pieces of flesh) -- confederacy, (con-)feder(-ate), covenant, league.
might be with Levi
attached; Levi, a son of Jacob -- Levi.
to say (used with great latitude)
(the) self-Existent or Eternal; Jehovah, Jewish national name of God -- Jehovah, the Lord.
a mass of persons (or figuratively, things), especially reg. organized for war (an army); by implication, a campaign, literally or figuratively (specifically, hardship, worship)