Complex sentence: The Missouri Synod believes that the Bible is the only standard by which church teachings can be judged, and holds that Scripture is best explained and interpreted by the Book of Concord--a series of confessions of faith composed by Lutherans in the 16th century.
Split into simpler sentences: The Missouri Synod believes that the Bible is the only standard by which church teachings can be judged. It also holds that Scripture is explained and interpreted by the Book of Concord--a series of confessions of faith composed by Lutherans in the 16th century.