Revelation 6:8

And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.

I looked up and saw a horse whose color was pale green. Its rider was named Death, and his companion was the Grave. These two were given authority over one-fourth of the earth, to kill with the sword and famine and disease and wild animals.