How can I tell if my trust in the Lord is wholehearted? One way is this. Do I let the Bible overrule my own thinking? It says, “Do not lean on your own understanding” [Pr. 3:5]. So, do I agree with the Bible, or do I obey the Bible? If I merely agree with the Bible, then my positive response is not obedience but coincidence. The Bible just happens to line up with the prejudices I’ve soaked up from my background. But what do I do when the Bible contradicts what I want to be true — especially when, on top of that, it seems culturally remote and perplexing? If I’m reading the Bible for excuses for what I want anyway, my heart has already drifted from the Lord. But if I trust Him wholeheartedly, I will let the Bible challenge my most cherished thoughts and feelings.
Ray Ortlund, Blog Post: Wholehearted Trust Accepts Authority, December 5, 2011.