“All truth is God’s truth,” or so we often hear. I myself have said this and felt righteous, wise and holy in doing so. But closer examination reveals a serious problem with this popular maxim: no definition of the word truth. What does truth mean in this context? Highlighting this problem in a lecture available on The Trinity Foundation website titled “The Ministry of the Trinity Foundation,” Jack Lannom said,
My mistaken belief that all truth is God’s truth was really no different from the idea that all worship is God’s worship. John Moffat (sic) addressed this idea in an article in The Christian Conscience. ‘ I can imagine Nadab and Abihu talking about the early worship service in the wilderness. One says to the other, ‘all fire is God’s fire. God made all fire, therefore it’s all of him.” Or while Moses was up on the mountain, Mount Sinai, the children of Israel could have said to Aaron, “Aaron, all worship is God’s worship.’ ‘ I love this last phrase that John Moffat (sic) says, ‘these analogies have the same deceptive sound of being logical at first, but they are full of the same ambiguity and deceit as the expression all truth is God’s truth.’
These saying – all fire is God’s fire and all truth is God’s truth – are ambiguous and deceitful because the same word is being used to mean different things. There are many types of fire. There are campfires, there are brush fires, there’s even a burning lake of fire, but these fires are different things than what God deemed acceptable to himself under the law. There are many activities that people call worship, but only that worship defined by God is worship proper. All other so-called worship is really idolatry.
And so it is with truth. There are many things people call truth: scientific truth, historical truth, truth gleaned from personal experience, truth learned from Oprah. But none of these things are truth as the Bible defines truth. Christ prayed, “Sanctify them by your truth. Your word is truth.”
The Bible alone is the Word of God, therefore the Bible alone is truth. Those who say “all truth is God’s truth,” are proclaiming that there is truth outside of the Scriptures that man discovers on his own. But this is false, for we are just as dependent on God for the knowledge of the truth as we are for salvation. What we should say is, “God’s truth is all truth.” That is the Christian position.
Lux Lucet 
I love that lecture by Jack Lannom, such a great attitude. I’ve listened to it multiple times.
I really like that lecture too. One thing that stood out to me about what he said was the description he used of himself prior to coming to a Scripturalist understanding of the Bible. He was always in search of truth, never realizing what he was looking for was found in the pages of his Bible.
A very helpful and clear distinction Steve. Thanks.
You’re welcome, John.
Just listened to it again…. That testimony of Jack Lannom’s mirrors my own in that he spent 30 years wandering around in the wilderness before….. bamm !!, the lights turned on after hearing Dr Clark and Dr Robbins. Jack’s use of Scripture in this lecture is quite compelling in proving the sufficiency of Scripture.
Thx again for highlighting it Steve.
You’re welcome, John. I would second what you said about your experience. It’s amazing how much time we waste looking for truth everywhere but the actual source of truth.