“A Christian who claims to understand all of God’s truth and to envision the fulfillment of all His promises is not demonstrating great faith but great presumption.” -John MacArthur-
There are many examples of doubt creeping into the minds of great and faithful people of the Bible. Doubt, I’m sure creeps into your mind, as it does mine. As we think about this quote, it is important to realize that no matter a person’s spiritual maturity, there will always be a massive gap between God’s knowledge and ours. Though we are created in His image, at best we are an imperfect reflection of Him. Realizing this fact is a healthy place to be, as it should keep us ever intrigued to more fully “know” God. There is, however, much about God’s truth; His will, His plans, His purposes and His promises that belong only to Him. These things are called His secret will, “The secret things belong to the LORD our God…” (Deuteronomy 29:29). So we must be careful in presuming full understanding of all His truth, for it is impossible.
On the other hand, our limited knowledge of all God’s truth, plans, purposes and promises are never an excuse for not knowing what He has revealed to us. Unfortunately, because of discouragement or doubt, many end up in a place where they just quit listening. This is a mistake. The latter half of Deuteronomy 29:29 tells us that what God has chosen to reveal is of great importance, “…but the things that are revealed belong to us and to our children forever…” God does not hide the things we should know regarding issues of faith. But at the same time, godly faith doesn’t require us to be able to fully understand all His ways. Godly faith is full trust in God even when we don’t. It is as the Hebrew writer says, “the assurance of things hoped for, the conviction of things not seen (Hebrews 11:1).