the Old Testament as authoritative and says it "cannot be broken" . 2 Timothy 3:16 says: "All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness". The Second Epistle of Peter claims that "no prophecy of Scripture comes from someone's own interpretation. For no prophecy was ever produced by the will of man, but men spoke from God as they were carried along by the Holy Spirit". It also speaks of Paul's letters as containing some things "hard to understand, which the ignorant and unstable twist to their own destruction, as they do the other Scriptures". This letter does not specify "the other Scriptures", nor does the term "all Scripture" in 2 Timothy indicate which writings were or would be breathed out by God and useful for teaching, since it does not preclude later works, such as the Book of Revelation and the Epistles of John may have been. The Catholic Church recognizes 73 books as inspired and forming the Bible (46 books of the Old Testament and 27 books of the New Testament). The most common versions of the Bible that Protestants have today consist of 66 of these books. None of the 66 or 73 books gives a list of revealed books. Theologian and Christian existentialist philosopher Paul Johannes Tillich (1886–1965), who sought to correlate culture and faith so that "faith need not be unacceptable to contemporary culture and contemporary culture need not be unacceptable to faith", argued that revelation never runs counter to reason (affirming Thomas Aquinas who said that faith is eminently rational), and that both poles of the subjective human experience are complementary. Karl Barth argued that God is the object of God's own self-knowledge, and revelation in the Bible means the self-unveiling to humanity of the God who cannot be discovered by humanity simply through its own efforts. For him, the Bible is not The Revelation; rather, it points to revelation. Human concepts can never be considered as identical to God's revelation, and Scripture is written in human language, expressing human concepts. It cannot be considered identical with God's revelation. However, God does reveal himself through human language and concepts, and thus Christ is truly presented in scripture and the preaching of the church. Catholic Church The Catechism of the Catholic Church of the Catholic Church states: The Catholic Church also believes Jesus Christ