I

By what means is God's perfection of man accomplished? It's accomplished by means of His righteous disposition. God's disposition primarily consists of righteousness, wrath, majesty, judgment, and curse, and He perfects man primarily by means of His judgment. Some people don't understand, and they ask why it is that God is only able to make man perfect through judgment and through curse. They say, "If God were to curse man, then wouldn't man die? If God were to judge man, wouldn't man be condemned? How can he still be made perfect then?" Such are the words of people who do not know the work of God. What God curses is the rebelliousness of man, and what He judges are the sins of man.

II

Although He speaks harshly and without sparing man's feelings at all, and He exposes all that is within man, exposing through some stern words that which is substantive within man, through such judgment, He gives man a profound knowledge of the substance of the flesh, and thus man submits before God. The flesh of man is of sin and of Satan, it's rebellious, and it's the object of God's chastisement. Thus, in order to allow man to know himself, the words of God's judgment must befall him and there must be employed every kind of refinement; only then can God's work be effective.

from The Word, Vol. 1. The Appearance and Work of God. Only by Experiencing Painful Trials Can You Know the Loveliness of God