Forgot to add Greig notes include "...The tune of the song is "The Mason's Word - Keep Your Mouth Shut". Greig's comment indicates that F.R. Brown knew of, but could not remember, a stanza before the stanza 1 given here. In the Poet's Box version, the "knights of Malta" stanza is the second and the first has the following wording:

    Come all ye craftsmen that do wish
    To propagate the grand design,
    Come enter into this bright temple
    And learn the craft sublime;
      For we are the true born sons of Levi,
      Few on earth to us compare,
      We are the root and branch of David,
      That bright adn glorious morning star"
  

There is also a copy in The Bodleian published by W.Armstrong of Liverpool between 1820 and 1824: The Sons of Levi

Mick