In the councils of heaven it was decided that principles must be acted upon that would not at once destroy Satan's power; for it was God's purpose to place things upon an eternal basis of security. Time must be given for Satan to develop the principles which were the foundation of his government. The heavenly universe must see worked out the principles which Satan declared to be superior to God's principles. God's order must be contrasted with Satan's order. The corrupting principles of Satan's rule must be revealed. The principles of righteousness expressed in God's law must be demonstrated as unchangeable, perfect, eternal.—The Review and Herald, September 7, 1897. TA 41.1
The loyal angels hasten speedily to the Son of God and acquaint Him with what is taking place among the angels. They find the Father in conference with His beloved Son, to determine the means by which, for the best good of the loyal angels, the assumed authority of Satan could be forever put down. The great God could at once have hurled this arch deceiver from heaven; but this was not His purpose. He would give the rebellious an equal chance to measure strength and might with His own Son and His loyal angels. In this battle every angel would choose his own side, and be manifested to all.—The Spirit of Prophecy 1:21. TA 41.2