Following are a number of back-translations of Romans 4:3:

• Uma: “For there is something written in the Holy Book that speaks of Abraham like this: ‘Abraham believed God, and because of his faith God said he was straight in his sight.'” (Source: Uma Back Translation)
• Yakan: “What does the holy-book say about Ibrahim? The holy-book says that Ibrahim believed God’s promise to him. And because of that belief of his he was forgiven and he was considered straight by God.” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “The reason we know this is because there is a written word of God which says, ‘Abraham believed in God, and because of this belief of His, God considered him to be righteous.'” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “Because there is a written word of God which says, ‘Abraham believed/obeyed what God said, so God counted him as righteous.'” (Source: Kankanaey Back Translation)
• Tenango Otomi: “It says in the Holy Book how it is that God cleared Abraham. It says: ‘Abraham believed that the word God said would happen. In that he believed, for that God cleared him.'” (Source: Tenango Otomi Back Translation)
• Chichewa (interconfessional translation, 1999): “Thus what do the Writings say? They say, ‘Abraham believed God, and upon that believing, God viewed him as [being] righteous.'” (Source: Wendland 1998, p. 112)

For the Old Testament quote, see Genesis 15:6.