And I heard what sounded like a voice from among the four living creatures, saying, "A quart of wheat for a denarius, and three quarts of barley for a denarius, and do not harm the oil and wine."

Matthew 24:7
Nation will rise against nation, and kingdom against kingdom. There will be famines and earthquakes in various places.

Revelation 4:6
And before the throne was something like a sea of glass, as clear as crystal. In the center, around the throne, were four living creatures, covered with eyes in front and back.

Revelation 4:8
And each of the four living creatures had six wings and was covered with eyes all around and within. Day and night they never stop saying: "Holy, Holy, Holy, is the Lord God Almighty, who was and is and is to come!"

Revelation 7:3
"Do not harm the land or sea or trees until we have sealed the foreheads of the servants of our God."

Revelation 9:4
They were told not to harm the grass of the earth or any plant or tree, but only those who did not have the seal of God on their foreheads.

And I heard a voice in the middle of the four beasts say, A measure of wheat for a penny, and three measures of barley for a penny; and see you hurt not the oil and the wine.