Revelation 6:5-8

5And when the Lamb opened the third seal, I heard the third living creature say, “Come!”

Then I looked and saw a black horse, and its rider held in his hand a pair of scales. 6And I heard what sounded like a voice from among the four living creatures, saying, “A quart of wheat for a denarius,1 and three quarts of barley for a denarius, and do not harm the oil and wine.”

7And when the Lamb opened the fourth seal, I heard the voice of the fourth living creature say, “Come!”

8Then I looked and saw a pale green horse. Its rider’s name was Death, and Hades followed close behind. And they were given authority over a fourth of the earth, to kill by sword, by famine, by plague, and by the beasts of the earth.