Nuggets from "An Urgent Call to a Serious Faith" by Dave Hunt - Is All Truth God's Truth?

Those who proclaim that “all truth is God’s truth” confuse the truth with mere facts of nature. That the latter are not included in the former is quite clear from what Jesus said: “When he, the Spirit of truth, is come…whom the world cannot receive…he will guide you into all truth” (John:16:3And these things will they do unto you, because they have not known the Father, nor me.
See All...; 14:17; 16:13). Since all truth is revealed only by the Spirit of God “whom the world cannot receive,” and since “the natural man receiveth not the things of the Spirit of God” (1 Corinthians:2:14But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.
See All...), if science were part of “God’s truth,” then all scientific discoveries would have to be made only by Christians. Yet non-Christians make great scientists. So even if psychology were a science, which it is not, it would still not be part of “God’s truth,” which is revealed by God only to His own.

God’s truth as revealed by the Holy Spirit in His Word sets us free from sin and leads us into victorious living. It has nothing to do with science but involves the moral and spiritual part of man. As soon as science pretends to deal with spiritual truth, it has overstepped its bounds. Physics, chemistry, medicine, and so on, make no such pretense, but “Christian psychology” does, which is why it it so fallacious and dangerous.