19:1-2
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1After these things I heard as it were a great voice of a great multitude in heaven, saying, Hallelujah; Salvation, and glory, and power, belong to our God:
2for true and righteous are his judgments; for he hath judged the great harlot, her that corrupted the earth with her fornication, and he hath avenged the blood of his servants at her hand.
Revelation 19:1-2 (ASV)