In like manner the remaining Lutheran symbols were adopted. (852. 777.) Other books, the Formula of Concord declares, are accounted useful, "as far as (_wofern, quatenus_) they are consistent with" the Scriptures and the symbols. (855, 10.) The symbols, however, are accepted "that we may have a unanimously received, definite, common form of doctrine, which all our Evangelical churches together and in common confess, from and according to which, because (_cum, weil_) it has been derived from God's Word, all other writings should be judged and adjusted, as to how far (_wiefern, quatenus_) they are to be approved and accepted." (855, 10.) After its adoption by the Lutheran electors, princes, and estates, the Formula of Concord, and with it the entire Book of Concord, was, as stated, solemnly subscribed by about 8,000 theologians, pastors, and teachers, the pledge reading as follows: "Since now, in the sight of God and of all Christendom, we wish to testify to those now living and those who shall come after us that this declaration herewith presented concerning all the controverted articles aforementioned and explained, and no other, is our faith, doctrine, and confession in which we are also willing, by God's grace to appear with intrepid hearts before the judgment-seat of Jesus Christ, and give an account of it; and that we will neither privately nor publicly speak or write anything contrary to it, but, by the help of God's grace, intend to abide thereby: therefore, after mature deliberation, we have, in God's fear and with the invocation of His name, attached our signatures with our own hands." (1103, 40.) Furthermore, in the Preface to the Book of Concord the princes and estates declare that many churches and schools had received the Augsburg Confession "as a symbol of the present time in regard to the chief articles of faith, especially those involved in controversy with the Romanists and various corruptions of the heavenly doctrine." (7.) They solemnly protest that it never entered their minds "either to introduce, furnish a cover for, and establish any false doctrine, or in the least even to recede from the Confession presented in the year 1530 at Augsburg." (15.) They declare: "This Confession also, by the help of God, we will retain to our last breath when we shall go forth from this life to the heavenly fatherland, to appear with joyful and undaunted mind and with a pure conscience before the tribunal of our Lord Jesus Christ." (15.) "Therefore we also have determined not to depart even a finger's breadth either from the subjects themselves or from the phrases which are found in them (_vel a rebus ipsis vel a phrasibus, quae in illa habentur, discedere_), but, the Spirit of the Lord aiding us, to persevere constantly, with the greatest harmony, in this godly agreement, and we intend to examine all controversies according to this true norm and declaration of the pure doctrine." (23.) 7. Pledging of Ministers to the Confessions.