" Thus, the words of Scripture are “self-attesting.” They cannot be “proved” to be God’s words by appeal to any higher authority. For if an appeal to some higher authority (say, historical accuracy or logical consistency) were used to prove that the Bible is God’s Word, then the Bible itself would not be our highest or absolute authority: it would be subordinate in authority to the thing to which we appealed to prove it to be God’s Word. "

― Wayne Grudem , Systematic Theology/Historical Theology Bundle