Revelation 6:8-10

Darby Translation

⁸ And I saw: and behold, a pale horse, and he that sat upon it, his name [was] Death, and hades followed with him; and authority was given to him over the fourth of the earth to slay with sword, and with hunger, and with death, and by the beasts of the earth.

⁹ And when it opened the fifth seal, I saw underneath the altar the souls of them that had been slain for the word of God, and for the testimony which they held;

¹⁰ and they cried with a loud voice, saying, How long, O sovereign Ruler, holy and true, dost thou not judge and avenge our blood on them that dwell upon the earth?