Revelation 9:4

They were told not to harm the grass, or any plant, or any tree, but only those who have not 'the seal of God upon their foreheads.'

Revelation 6:6

And I heard what seemed to be a voice, coming from among the four Creatures, crying--'A quart of wheat for a florin, and three quarts of barley for a florin! But do not harm the oil and the wine.'

Revelation 8:7

The first blew; and there came hail and fire mixed with blood, and it fell upon the earth. A third part of the earth was burnt up, and a third of the trees, and every blade of grass.

Matthew 24:24

For false Christs and false Prophets will arise, and will display great signs and marvels, so that, were it possible, even God's People would be led astray.

Ephesians 4:30

And do not grieve God's Holy Spirit; for it was through that Spirit that God sealed you as his, against the Day of Redemption.

2 Timothy 3:8-9

Just as Jannes and Jambres opposed Moses, so do these people, in their turn, oppose the Truth. Their minds are corrupted, and, as regards the Faith, they are utterly worthless.

Revelation 7:2-4

And, in the east, I saw another angel, ascending, holding the seal of the Living God; and he cried in a loud voice to the four angels, to whom there had been given power to harm the earth and the sea--

Revelation 14:1

Then, in my vision, I saw the Lamb standing on Mount Zion. With him were a hundred and forty-four thousand men, with his name and the name of his Father written on their foreheads.

Treasury of Scripture Knowledge

Summary

And it was commanded them that they should not hurt the grass of the earth, neither any green thing, neither any tree; but only those men which have not the seal of God in their foreheads.

Bible References

That they

Revelation 6:6
And I heard what seemed to be a voice, coming from among the four Creatures, crying--'A quart of wheat for a florin, and three quarts of barley for a florin! But do not harm the oil and the wine.'
Revelation 7:3
'Do not harm the earth, or the sea, or the trees, until we have sealed the servants of our God upon their foreheads.'
Matthew 24:24
For false Christs and false Prophets will arise, and will display great signs and marvels, so that, were it possible, even God's People would be led astray.
2 Timothy 3:8
Just as Jannes and Jambres opposed Moses, so do these people, in their turn, oppose the Truth. Their minds are corrupted, and, as regards the Faith, they are utterly worthless.

Hurt

Revelation 8:7
The first blew; and there came hail and fire mixed with blood, and it fell upon the earth. A third part of the earth was burnt up, and a third of the trees, and every blade of grass.

Which

Revelation 7:3
'Do not harm the earth, or the sea, or the trees, until we have sealed the servants of our God upon their foreheads.'
Revelation 14:1
Then, in my vision, I saw the Lamb standing on Mount Zion. With him were a hundred and forty-four thousand men, with his name and the name of his Father written on their foreheads.
Ephesians 4:30
And do not grieve God's Holy Spirit; for it was through that Spirit that God sealed you as his, against the Day of Redemption.