Revelation 7:2-3

 "And behold, I am coming quickly. 

Blessed is he who heeds the words of the prophecy of this book."     

Revelation 22:7  NASB

Then I saw another angel coming up from the east, having the seal of the living God. He called out in a loud voice to the four angels who had been given power to harm the land and the sea. "Do not harm the land or the sea or the trees until we put a seal on the foreheads of the servants of our God." 

Then I saw another angel coming up from the east, having the seal 
Revelation 9:4  They were told not to harm the grass of the earth or any plant or tree, but only those people who did not have the seal of God on their foreheads.

of the living God 
Matthew 16:16  Simon Peter answered, "You are the Messiah, the Son of the living God."
Psalm 42:2  My soul thirsts for God, for the living God. When can I go and meet with God?
Jeremiah 10:10  But the LORD is the true God; he is the living God, the eternal King. When he is angry, the earth trembles; the nations cannot endure his wrath.
Acts 14:15  "Friends, why are you doing this? We too are only human, like you. We are bringing you good news, telling you to turn from these worthless things to the living God, who made the heavens and the earth and the sea and everything in them."
Hebrews 10:31  It is dreadful thing to fall into the hands of the living God.

He called out in a loud voice to the four angels who had been given power to harm the land and the sea 
Revelation 7:1  After this I saw four angels standing at the four corners of the earth, holding back the four winds of the earth to prevent any wind from blowing on the land or on the sea or on any tree.

Do not harm the land or the sea or the trees 
Revelation 6:6  Then I heard what sounded like a voice among the four living creatures, saying, "Two pounds of wheat for a day's wages, and six pounds of barley for a day's wages, but do not damage the oil or the wine!"

until we put a seal on the foreheads of the servants of our God 
Revelation 14:1  Then I looked, and there before me was the Lamb, standing on Mount Zion, and with him, 144,000 who had his name and his Father's name written on their foreheads.
Revelation 22:4  They will see his face, and his name will be on their foreheads.
Ezekiel 9:4  ... "Go throughout the city of Jerusalem and put a mark on the foreheads of those who grieve and lament over all the detestable things that are done in it."

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984, 2011 by Biblica, Inc.® Used by permission. All rights reserved worldwide. 
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