Revelation 6:5-6

And when he had opened the third seal, I heard the third animal, which said, Come and see. And I saw and, behold, a black horse, and he that was seated upon him had a yoke in his hand. And I heard a voice in the midst of the four animals, which said, A choenix of wheat for a denarius and three choenix of barley for a denarius; and see thou hurt not the oil and the wine.