Romans 3:1

What advantage then? &c. The apostle, not to offend the Jews, by insisting too long in reprehending them, turns his discourse to the advantages they have hitherto had above other nations. As first, that the words of God, those divine oracles, revelations, promises in the Scriptures, were credited or intrusted to them. And though some, or many of them have not believed God's promises, especially concerning their Messias; this hath not hindered God from being faithful to his word, in sending the Messias, and those blessings that were promised with him. For God is always true, or faithful in his promises, and therefore must needs be justified, or found just, when his proceedings are judged, that is, considered and examined. (Witham)