they cried: Genesis 4:10; Psalms 9:12; Luke 18:7-8; Hebrews 12:24
How: Psalms 13:1, Psalms 35:17, Psalms 74:9-10, Psalms 94:3-4; Daniel 8:13, Daniel 12:6; Zechariah 1:12
holy: Revelation 3:7, Revelation 15:3-4
dost: Revelation 11:18, Revelation 16:5-7, Revelation 18:20, Revelation 18:24, Revelation 19:2; Deuteronomy 32:36-43; Judges 16:28; 1 Samuel 24:12; Psalms 58:10-11; Isaiah 61:2, Isaiah 63:1-6; Luke 21:22; Romans 12:19; 2 Thessalonians 1:6-8
avenge: This seal seems a prediction of the terrible persecution of the church under Dioclesian and Maximian, from ad 270 to 304, which lasted longer, and was far more bloody, than any or all by which it was preceded, whence it was called "the era of the martyrs."