With simple faith and obedience we receive [God's] words as they read, in their plain sense. We do not allow ourselves to be diverted by any objections spun from human reason, however appealing they may appear to reason.
When Abraham heard God's Word about offering his son [Genesis 22], he had reason enough to debate whether the words should be understood literally. They conflicted not only with reason and the divine and natural law, but also with the chief article of faith about the promised Seed, Christ, who was to be born of Isaac. Nevertheless, when the promise of the blessed Seed from Isaac was given to him, Abraham honored God's truthfulness. He confidently believed that what God promised He could also do, although it appeared impossible to his reason. So also about Isaac's sacrifice he understood and believed God's Word and command plainly and simply, as they read according to the letter. He committed the matter to God's almighty power and wisdom, which, he knew, has many ways to fulfill the promise of the Seed from Isaac than he could comprehend.
We, also, are to believe with all humility our Creator and Redeemer's plain words and without dispute about how it agrees with our reason or is possible. For these words were spoken by that Lord who is infinite Wisdom and Truth itself. He can do everything He promises. (paragraphs 45-47)
Condensed from CONCORDIA: THE LUTHERAN CONFESSIONS, copyright 2005,2006 by Concordia Publishing House. Used by permission. All rights reserved. To purchase a copy of CONCORDIA, call 800-325-3040.