“If you believe what you like in the Gospel, and reject what you don't like, it is not the Gospel you believe, but yourself.” — Augustine
2 Timothy 3:16-17
All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work.
Either Scripture is sufficient or it isn't. At some point, we have to decide. If it is, then we need to think more Biblically. We need to be more principled and more practical. We need to be more acquainted with the content and context of the Bible and more interactive with the principles it provides. The Bible must be applied to the practices and predicaments of everyday life.
To say that Scripture is sufficient is not to say that you cannot consult or consider any other source of information, but rather to confirm which filters which. With what authority does the buck stop? Which worldview prevails? The one the Bible provides or one of its competitors?
"The Bible is thought of as authoritative on everything of which it speaks. Moreover, it speaks of everything. We do not mean that it speaks of football games, of atoms, etc., directly, but we do mean that it speaks of everything either directly or by implication." – Cornelius Van Til, Christian Apologetic
The Bible, in principle, speaks to everything. The more Biblically you begin to think -- that is to say, the more your thinking and assessment of situations is guided by underlying principles proclaimed and applied in the Scriptures -- the more you have a handle on life, breath, and everything else that happens here on a Tuesday afternoon.
"In the Bible, we have a perfect library." — Charles Haddon Spurgeon
John 10:35
...the Scripture cannot be broken
Jesus said that Scripture could not be broken.
He seemed to believe the Bible was timeless and timely, never not relevant and always up to the moment. The Bible is God's unbreakable, impenetrable Word.
"We cannot have the Jesus of the Bible and at the same time reject the Bible of Jesus." — B.B. Warfield
You can't believe in the Jesus we find in Scripture and reject the Scripture that Jesus believed.