Worldviews change - God doesn't
In contrast to the enduring character of the gospel, the theories and philosophies of men are constantly in flux. Worldviews that dominate popular thinking, whether for decades or for centuries, are eventually discarded as outmoded and passé. New discoveries, developments, or insights render previous frameworks of thought no longer tenable. In a very real sense, when it comes to human wisdom the only constant is change.
But not so with God.
Unlike men, God is not in flux. He never changes but is the same yesterday, today, and forever. Unlike men, God is neither finite nor fallible. He has never been mistaken about anything because He knows all and controls all. God is always consistent with Himself. He cannot contradict Himself, and He cannot lie. He is not the author of confusion. Moreover, His Word is true not simply because it accords with reality but because it comes from the very One who established reality—and who did so by the word of His power.
As God’s written Word, the Bible reflects the perfection and consistency of its Author. The facts it sets forth are reliable because God is reliable. The assertions it makes—whether in areas of faith and practice or in areas of science and history—can be trusted because God is inherently trustworthy. In the same way that God is eternally true, His written Word is also true. As the psalmist exclaimed, speaking to God, “The sum of Your word is truth, and every one of Your righteous ordinances is everlasting” (Psalm 119:160, NASB).
MacArthur, J. (2008). Foreword. In Reasons We Believe: 50 Lines of Evidence that Confirm the Christian Faith (pp. 13–14). Wheaton, IL: Crossway Books.
