Revelation 1:8

 "And behold, I am coming quickly. 

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

Revelation 22:7  NASB

"I am the Alpha and the Omega," says the Lord God. "who is, and who was, and who is to come, the Almighty."

I am the Alpha and the Omega 
Revelation 1:17  When I saw him, I fell at his feet as though dead. Then he placed his right hand on me and said: "Do not be afraid, I am the First and the Last. I am the living one; I was dead, and now look, I am alive for ever and ever! And I hold the keys of death and Hades." 
Revelation 21:6  He said to me: "It is done. I am the Alpha and the Omega, the Beginning and the End. To the thirsty I will give water without cost from the spring of the water of life."
Revelation 22:13  "I am the Alpha and the Omega, the First and the Last, the beginning and the end."
Isaiah 44:6  "This is what the LORD says--Israel's King and Redeemer, the LORD Almighty: I am the first and I am the last; apart from me there is no God."
Isaiah 48:12-13  "Listen to me, Jacob, Israel whom I have called: I am he; I am the first and I am the last. My own hand laid the foundations of the earth, and my right hand spread out the heavens; when I summon them, they all stand up together."
Revelation 2:8  "To the angel of the church of Smyrna write: These are the words of him who is the First and the Last, who died and came to life again."

who is, and who was, and who is to come 
Revelation 1:4-5  John, To the seven churches in the province of Asia: Grace and peace to you from him who is, and who was, and who is to come, and from the seven spirits before his throne, and from Jesus Christ, who is the faithful witness, the firstborn from the dead, and the ruler of the kings of the earth.

the Almighty 
Revelation 4:8  Each of the four living creatures had six wings and was covered with eyes all around, even under its wings. Day and night they never stopped saying: " 'Holy, holy, holy is the Lord God Almighty,' (Isaiah 6:3) who was and is, and is to come."
Revelation 15:3-4  ... and sang the song of God's servant Moses and of the Lamb: "Great and marvelous are your deeds, Lord God Almighty. Just and true are your ways, King of the nations. Who will not fear you, Lord, and bring glory to your name? For you alone are holy. All nations will come and worship before you, for your righteous acts have been revealed." 
Revelation 19:6  Then I heard what sounded like a great multitude, like the roar of rushing waters and like loud peals of thunder, shouting: "Hallelujah! For our Lord God Almighty reigns."

(parentheses are mine)

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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