"...for the Bible tells me so"
The famous Swiss Reformed theologian Karl Barth is sometimes quoted with approval by conservative evangelicals for his answer to a journalist's request to summarize his 6 million word long Church Dogmatics. Barth thought for a moment and then said: "Jesus loves me, this I know, for the Bible tells me so."
Barth's beguiling response though hides a rather more sophisticated view of Christian scripture:
"The Bible is God's Word to the extent that God causes it to be his Word, to the extent that he speaks through it."
(Church Dogmatics I/1, p. 109).
Barth would have argued that making claims about biblical inerrancy the foundation of theology is to take a foundation other than Jesus Christ and thus to exercise a form of idolatry.
(With thanks to the often illuminating Faith and Theology blogspot and Barth's Wikipedia entry.)