All the heavenly host were summoned to appear before the Father, to have each case determined. Satan unblushingly made known his dissatisfaction that Christ should be preferred before him. He stood up proudly and urged that he should be equal with God, and should be taken into conference with the Father and understand His purposes. God informed Satan that to His Son alone He would reveal His secret purposes, and He required all the family in heaven, even Satan, to yield Him implicit, unquestioned obedience; but that he (Satan) had proved himself unworthy [of] a place in heaven. Then Satan exultingly pointed to his sympathizers, comprising nearly one half of all the angels, and exclaimed, These are with me! Will you expel these also, and make such a void in Heaven? He then declared that he was prepared to resist the authority of Christ and to defend his place in Heaven by force of might, strength against strength.
Good angels wept to hear the words of Satan, and his exulting boasts. God declared that the rebellious should remain in Heaven no longer. Their high and happy state had been held upon condition of obedience to the law which God had given to govern the high order of intelligences. But no provision had been made to save those who should venture to transgress His law. Satan grew bold in his rebellion, and expressed his contempt of the Creator’s law. This Satan could not bear. He claimed that angels needed no law but should be left free to follow their own will, which would ever guide them right; that law was a restriction of their liberty, and that to abolish law was one great object of his standing as he did. The condition of the angels he thought needed improvement. Not so the mind of God, who had made laws and exalted them equal to Himself. The happiness of the angelic host consisted in their perfect obedience to law. All had their special work assigned them; and until Satan rebelled, there had been perfect order and harmonious action in Heaven. . . .
The Father consulted Jesus in regard to at once carrying out their purpose to make human beings to inhabit the earth. He would place them upon probation to test their loyalty, before they could be rendered eternally secure.—The Spirit of Prophecy, vol. 1, 22, 23. HB 336
Out of doors, amid the things that God has made, breathing the fresh, health-giving air, the sick can best be told of the new life in Christ. Here God's word can be read. Here the light of Christ's righteousness can shine into hearts darkened by sin. MH 266
So the great dragon was cast out, that serpent of old, called the Devil and Satan, who deceives the whole world; he was cast to the earth, and his angels were cast out with him. Revelation 12:9, NKJV