“For we can do nothing against the truth, but for the truth.” 2 Corinthians 13:8
“This is so great a good that no human heart can grasp it (therefore it necessitates such a great and hard fight). It must not be treated lightly, as the world maintains and many people who do not understand, saying we should not fight so hard about an article and thus trample on Christian love; rather, although we err on one small point, if we agree on everything else, we should give in and overlook the difference in order to preserve brotherly and Christian unity and fellowship.
“No, my dear man, do not recommend to me peace and unity when thereby God’s Word is lost, for then eternal life and everything else would be lost. In this matter there can be no yielding or giving way, no, not for the love of you or any other person, but everything must yield to the Word, whether it be friend or foe. The Word was given unto us for eternal life and not to further outward peace and unity. The Word and doctrine will create Christian unity and fellowship. Where they reign all else will follow. Where they are not no concord will ever abide. Therefore do not talk to me about love and friendship, if that means breaking with the Word, or the faith, for the Gospel does not say that love brings eternal life, God’s grace, and all heavenly treasures, but the Word.”
~ The Blessed Dr. Luther, W.A. 34.II.287, from “Day by Day We Magnify Thee,” p. 384