Following are a number of back-translations of Romans 4:20:

• Uma: “His heart was not uncertain about God’s promise. He kept believing, and his faith strengthened his heart. That’s why Abraham said thank you ahead of time to God,” (Source: Uma Back Translation)
• Yakan: “He continued to believe that finally God’s promise to him would be fulfilled. Ibrahim did not doubt but his trust in God became stronger and God was praised by him.” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “He did not doubt the promise of God, but rather, he held tight to his believing and he thanked God for what he would do.” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “Neither did he doubt that God would fulfill what he had promised but instead his faith grew-stronger and at-the-same-time he also was praising God.” (Source: Kankanaey Back Translation)
• Tenango Otomi: “He did not at all doubt. Rather he firmly thought that there would happen the word God had told him. He was strengthened to believe that the child would be born as God had said. Therefore he praised God.” (Source: Tenango Otomi Back Translation)