Revelation 6:9-11
9And when He opened the fifth seal, I saw aunderneath the baltar the csouls of those who had been slain dbecause of the word of God, and because of the ewitness which they had maintained; 10and they cried out with a loud voice, saying, “aHow long, O bMaster, choly and true? 1Will You not djudge and avenge our blood on ethose who dwell on the earth?” 11And aa white robe was given to each of them; and it was told to them that they should brest for a little while longer, cuntil the number of their fellow slaves and their brothers who were to be killed even as they had been, would be dcompleted also.