'Damage' in the Bible

I heard what sounded like a voice from among the four living creatures, saying, "One day's ration of wheat for a day's wage, or three day's ration of barley for a day's wage! But don't damage the olive oil or the wine!"

Then I saw another angel ascending from the east, who had the seal of the living God. He shouted out with a loud voice to the four angels who had been given permission to damage the earth and the sea:

"Do not damage the earth or the sea or the trees until we have put a seal on the foreheads of the servants of our God."

They were told not to damage the grass of the earth, or any green plant or tree, but only those people who did not have the seal of God on their forehead.

And if any man would do them damage, fire comes out of their mouth and puts an end to those who are working against them: and if any man has a desire to do them damage, in this way will he be put to death.