Revelation 6:9-11

Living_Oracles(i) 9 And when he opened the fifth sea, I saw, under the altar, the souls of those who were slaughtered on account of the word of God, and the testimony which they held. 10 And they cried with a loud voice, and said, How long, O sovereign Lord, holy and true, before thou dost judge, and avenge our blood upon those who dwell on the earth? 11 And there were given to each of them white robes; and it was said to them, that they should rest yet a while, till the number of their fellow-servants and brethren who should be killed, as they had been, should be completed.