Following are a number of back-translations as well as a sample translation for translators of Zechariah 13:7:

• Kupsabiny: “The God of authority is saying,
  ‘Get up, please, sword and fight against my shepherd.
  Fight against this person that I am staying/living with.
  Kill the shepherd (so) the sheep scatter.
  I will hit the weak people.” (Source: Kupsabiny Back Translation)
• Newari: “The LORD Almighty says,
  "O sword, rise up and attack my shepherd,
  attack that man who stands next to me.
  Kill him, and the sheep will be scattered,
  and I will even stretch my hand against the young lambs."” (Source: Newari Back Translation)
• Hiligaynon: “The LORD Almighty said, ‘Prepare the sword! Kill my one-who-watches sheep, my helper. Kill him and the sheep will scatter, my humble/lowly people. Ang I will punish them.” (Source: Hiligaynon Back Translation)
• English: “The Commander of the armies of angels says,
  ‘My sword must strike the one who is like my shepherd,
  the man who is my companion/very <close/dear> to me.
  When the shepherd is killed,
  those who are like his sheep will scatter.
  And those who are like my little sheep will also be attacked.’” (Source: Translation for Translators)