SR 19
(The Story of Redemption 19)
Then there was war in heaven. The Son of God, the Prince of heaven, and His loyal angels engaged in conflict with the archrebel and those who united with him. The Son of God and true, loyal angels prevailed; and Satan and his sympathizers were expelled from heaven. All the heavenly host acknowledged and adored the God of justice. Not a taint of rebellion was left in heaven. All was again peaceful and harmonious as before. Angels in heaven mourned the fate of those who had been their companions in happiness and bliss. Their loss was felt in heaven. (SR 19.1) MC VC
The Father consulted His Son in regard to at once carrying out their purpose to make man to inhabit the earth. He would place man upon probation to test his loyalty before he could be rendered eternally secure. If he endured the test wherewith God saw fit to prove him, he should eventually be equal with the angels. He was to have the favor of God, and he was to converse with angels, and they with him. He did not see fit to place them beyond the power of disobedience. (SR 19.2) MC VC