Following are a number of back-translations as well as a sample translation for translators of Isaiah 2:6:

• Kupsabiny: “Oh, God, you have abandoned your people, the house of Jacob,
  because they joined with people who do not know you.
  The sorcerers of the East have filled Israel,
  and people who curse (others) like the Philistines.” (Source: Kupsabiny Back Translation)
• Newari: “O LORD, you have abandoned your People, the descendants of Jacob,
  they have filled their country with customs from the East.
  They see divinations like the Philistines
  and they set up alliances with foreigners.” (Source: Newari Back Translation)
• Hiligaynon: “(It is) true that you (sing.) rejected, LORD, your (sing.) people, the descendants of Jacob, for they believe in the beliefs from the east and from the fortunetellers like the Filistinhon. They follow the ways/behavior of those who-come-from-other place(s).” (Source: Hiligaynon Back Translation)