Following are a number of back-translations of Romans 10:2:

• Uma: “Their worship of God is really zealous/strict — I bear witness to that myself. But they do not know the true way to go to God.” (Source: Uma Back Translation)
• Yakan: “I know that they really strive to follow/obey God but their understanding as to how they follow/obey him does not hit-the-mark/is not correct.” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “I know that they are very strong to obey their doctrine which they suppose mistakenly pleases God; however, they do not know the true way which pleases God.” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “I can-confirm that they are persistent in serving God, but their serving him is not correct.” (Source: Kankanaey Back Translation)
• Tenango Otomi: “Because I know that from the heart they worship God. But the thing is that the worship they do is done without understanding the way in which God wants to save people.” (Source: Tenango Otomi Back Translation)