Following are a number of back-translations as well as a sample translation for translators of 1 Chronicles 16:21:

• Kupsabiny: “But God did not allow those people to suffer,
  because he was fierce against the rulers/kings while defending/protecting those people.” (Source: Kupsabiny Back Translation)
• Newari: “Yet no one was allowed to trouble them,
  He protected them,
  warning the kings like this –” (Source: Newari Back Translation)
• Hiligaynon: “But God did- not -allow them to-be-oppressed.
  So-that they could-be-protected, he rebuked the kings who went-against them.
  He said,” (Source: Hiligaynon Back Translation)
• English: “But he did not allow others to oppress them,
  and he warned kings by saying to them,” (Source: Translation for Translators)