The Bible is the sole authority, for it is God’s very Word to us.
The reliability of Scripture is supported by internal and external evidences concerning the authenticity of the books of the Bible, the credibility of the contents of the Bible, its unity, the precise fulfillment of biblical prophecy, and the archaeological confirmation of the accuracy of the Bible on historical, geographical, and cultural matters.
I cannot say “Jesus is Lord” and not also bring every aspect of my life – my opinions, my beliefs, my standards, my values, my ambitions – under the sovereign lordship of Jesus. Submission to Scripture can not be selective. Agreeing with Jesus on some things and disagreeing with him on others is not lordship. Selective submission in and of itself is reprehensible and prideful.
Thus, the highest proof of Scripture derives in general from the fact that God in person speaks in it. . . . For as God alone is a fit witness of himself in his Word, so also the Word will not find acceptance in men’s hearts before it is sealed by the inward testimony of the Spirit.
“True intellectual freedom is found not in independence of the truth, but in submission to the truth. When the mind submits to the truth, it is set free from falsehood, from the human deceits and the devil’s lies, from its own subjective insecurities, from the shifting sands of existential experience.” ~ John Stott