Following are a number of back-translations of James 3:13:

• Uma: “If there is in our midst a person whose thinking is good and whose heart is clear [i.e., aware, mature, wise], he must show his clearness of heart with his good behavior and with his character that appears from a humble [low] heart, like is fitting for people whose hearts are clear.” (Source: Uma Back Translation)
• Yakan: “If there is a person among you who has deep thoughts/wisdom and really understands, he should show his knowledge in his good works. And his liver should be lowly/humble for like that is a person whose thoughts/wisdom is truly deep.” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “Any of you who are wise and have large understanding, he must show it by means of his good works. He must not consider himself high as he shows his wisdom by means of his good workds.” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “If there is someone among you who is thinking/reflective and understanding, he should show his kind-of-wisdom in his good behavior/character and in his humbling (lit. lowering) himself in his doing what is good.” (Source: Kankanaey Back Translation)
• Tagbanwa: “Well who of you is knowledgeable and perceptive/understanding? It’s necessary that you prove it through your good nature/ways, and through the good things you are doing with meekness/patience which accompanies true understanding/wisdom.” (Source: Tagbanwa Back Translation)
• Tenango Otomi: “When there arises one who is wise, who thinks on the words he hears, it will be seen who such a person is because he does good. He does what he knows and is not arrogant in what he does.” (Source: Tenango Otomi Back Translation)
• Central Mazahua: “When anyone of you knows what is good to do and knows how, he will be careful how he will live and he will not make himself great. In that way people will notice that truly that one knows.”
• Rincón Zapotec: “If there is among you a man who has great ability and he understands exceedingly, with complete humility he ought to show that he is thus by means of the good things he is doing.”
• Alekano: ” . . . if he remains humble and does good things, he will demonstrate the substance of his wisdom.” (Source for this and two above: Ellis Deibler in Notes on Translation July, 1967, p. 5ff.)