Following are a number of back-translations as well as a sample translation for translators of 1 Samuel 14:39:

• Kupsabiny: “Saul swore in the name of the God who is alive and saves/rescues Israel that, ‘Even if it’s my son Jonathan who has committed that sin, I will kill him.’ But all those people kept silent.” (Source: Kupsabiny Back Translation)
• Newari: “As surely as the Lord who rescues Israel, If my son Jonathan has sinned, even he shall be killed." But not a single person spoke out.” (Source: Newari Back Translation)
• Hiligaynon: “I swear to the living LORD who saves the Israelinhon, that the-one-who has-sinned will-be-killed, even-if (it was) Jonatan my child/(son).’ But no one replied.” (Source: Hiligaynon Back Translation)
• English: “Yahweh has rescued us from the Philistia army. Just as certain as Yahweh lives, whoever has sinned must be executed. Even if it is my son Jonathan who has sinned, he must be executed.’
  His men knew who was guilty, but none of them said anything to Saul.” (Source: Translation for Translators)