Treasury of Scripture Knowledge
Summary
And I heard a voice in the midst of the four beasts say, A measure of wheat for a penny, and three measures of barley for a penny; and see thou hurt not the oil and the wine.
And see
Bible References
And see
Revelation 9:4
They were told not to harm the grass of the earth or any plant or tree, but only the men who did not have the mark of God's seal upon their foreheads.