It is summed up in our phrase: “Of One Heart & Mind in Christ” (Phil 2:2, 4:7). Concordia also refers to the Book of Concord (1580) which is a compilation of the Lutheran confessions saying what we believe in the Christian faith. The core of Lutheran biblical teaching can be summed up: We are Christ followers by faith alone in Christ alone by grace alone through Scripture alone for the glory of God alone.
