15:14 my brothers. A further indication of deeply felt emotion (1:13; 7:1, 4; 11:25; 12:1). Paul graciously assures the Romans that his lengthy exposition of the gospel is not intended to raise doubts about their spiritual understanding. Their knowledge of the gospel and ability to apply it practically in mutual admonition (“able to instruct one another”; cf. Col. 3:16) is not in question.