All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness. 2 Timothy 3:16
Charles G. Finney believed that Bible teaching without moral application could be worse than no teaching at all and could result in positive injury to the hearers.
I used to feel that this might be an extreme position, but after years of observation have come around to it, or to a view almost identical with it.
There is scarcely anything so dull and meaningless as Bible doctrine taught for its own sake. Theology is a set of facts concerning God, man and the world.
These facts may be and often are set forth as values in themselves; and there lies the snare both for the teacher and for the hearer.
The Bible is more than a volume of hitherto unknown facts about God, man and the universe. It is a book of exhortation based upon these facts. By far the greater portion of the book is devoted to an urgent effort to persuade people to alter their ways and bring their lives into harmony with the will of God as set forth in its pages.
Actually, no man is better for knowing that God in the beginning created the heaven and the earth. The devil knows that, and so did Ahab and Judas Iscariot. No man is better for knowing that God so loved the world of men that He gave His only begotten Son to die for their redemption. In hell there are millions who know that.
Theological truth is useless until it is obeyed. The purpose behind all doctrine is to secure moral action!