Dr. Clark says:
For "guidance," which so many Christians woefully misunderstand, the best procedure is to study all the Scripture, remember as much as possible, and then hope that what is pertinent to a present personal difficulty will come to mind when needed. The idea of waiting for trouble to arise, and then beginning to search the Scriptures, is a poor method. Of course it is worse to wait for "the leading of the Spirit" without the knowledge, discrimination, and judgment that honest intellectual study alone will bring.
Dr. Gordon H. Clark. Philippians. (Hobbs: The Trinity Foundation, 1996). Page 24.
See also: Philippians.