From 1984: Theory of Hierarchical Society by Emmanuel Goldstein
Chapter 4: God is Power
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And so it remains true that the first critique is the critique of religion; the first revolt is against the supreme tyrannies of theology and the phantom of God. Ever since the fantasy of a Divine Being took shape in humanity’s imagination, God — all gods, and among them above all the God of the Christians — has always taken the side of the strong and the rich against the ignorant and impoverished masses. Through his presence, he has blessed the most revolting privileges, the basest oppressions, and the vilest of exploitations.
As long as we have a master in heaven, we will be slaves on earth, and our reason and ability to create our own lives will be annulled. As long as we believe that we must unconditionally obey — and, vis-a-vis God, no other obedience is possible — we must of necessity passively and totally submit, without the least reservation, to the holy authority of all his agents, messiahs, prophets, divinely-inspired lawmakers, emperors, kings, and all their functionaries and ministers, representatives and consecrated servants of the two greatest institutions which impose themselves upon us, and which are established by God himself to rule over men and women — namely, the Church and the State. All temporal or human authority stems directly from spiritual and/or divine authority.
Authority is the negation of freedom, of human self-determination and self-management. God, or rather the fiction of God, is the consecration and the intellectual and moral source of all slavery on earth, and the freedom of humanity will never be complete until the disastrous and insidious fiction of a heavenly master is annihilated. To annihilate totally hierarchical power and thereby bring about human equality, it is necessary to annihilate God; to “kill” God, it is necessary to annihilate totally hierarchical earthly power. This is the inner secret of the slogan GOD IS POWER.