We need to remember, first, that impatience is a manifestation of pride. We are impatient because we want to “be like God” (Gen. 3:5), who alone gets everything done all the time. God speaks, and it always happens. Nothing frustrates His will; nothing limits His accomplishments. He always accomplishes everything that He wants to accomplish, and He always does so at the precise moment that He wants it to be done. We are impatient because we are not like that, and we so desperately want to be. And since pride really is “the great sin,” as C.S. Lewis has said, we ought not to tolerate it or to turn a blind eye to it in any of its manifestations.
The second thing I would say is that patience is a fruit of the Spirit (Gal. 5:22). Every Christian, by definition, is indwelt by the Holy Spirit (Rom. 8:9–11). And if the fruit that the Spirit produces in us includes patience, then every Christian should necessarily exhibit patience in his or her life in increasing measure. Patience is not optional for us as Christians because possessing the Holy Spirit isn’t optional. To turn a blind eye to impatience in our lives is therefore to deny that Christians must be indwelt by the Holy Spirit or to suggest that the Holy Spirit won’t produce patience in our lives—both of which are completely untrue.