I am the Alpha and the Omega, the first and the last, the beginning and the end. (Revelation 22:13 ESV)
Alpha and Omega are the first and last letters of the Greek alphabet in which the New Testament is written. In referring to himself as the first and last, Jesus is once again revealing himself as God. Early in the Revelation John quotes God as saying, I am the Alpha and the Omega, says the Lord God, who is and who was and who is to come, the Almighty. (Revelation 1:8 ESV) And in Revelation 22:13 Jesus reveals to John that he too is the Alpha and Omega.
Before revealing himself as the Alpha and Omega Jesus said, Behold I am coming soon. (Revelation 22:12) Jesus had told his disciples that he would one day return (John 14:3, 28). Thus leaving no doubt that the one who is the Alpha and Omega is indeed Jesus.
Jesus furthermore made it plain that the one who was the first and last is also the one who died. John records, When I saw him, I fell at his feet as though dead. But he laid his right hand on me, saying, “Fear not, I am the first and the last, and the living one. I died, and behold I am alive forevermore, and I have the keys of Death and Hades.” (Revelation 1:17-18 ESV) And to the angel of the church in Smyrna write: The words of the first and the last, who died and came to life. (Revelation 2:8 ESV)
Not only did Jesus claim to be the Alpha and Omega, the beginning and end (Revelation 22:13, so did God. John wrote, And he who was seated on the throne said, “Behold, I am making all things new.” Also he said, “Write this down, for these words are trustworthy and true.” And he said to me, “It is done! I am the Alpha and the Omega, the beginning and the end.” (Revelation 21:5-6 ESV)
It is obvious in Revelation 4 that the one being worshiped by the four living creatures and the twenty-four elders is God. And whenever the living creatures give glory and honor and thanks to him who is seated on the throne, who lives forever and ever, the twenty-four elders fall down before him who is seated on the throne and worship him who lives forever and ever. They cast their crowns before the throne, saying, “Worthy are you, our Lord and God, to receive glory and honor and power, for you created all things, and by your will they existed and were created.” (Revelation 4:9-11 ESV) In the beginning God created (Genesis 1:1).
John wrote in his gospel, In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things were made through him, and without him was not anything made that was made. (John 1:1-3 ESV) Paul wrote of Jesus, He is the image of the invisible God, the firstborn of all creation. For by him all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things were created through him and for him. And he is before all things, and in him all things hold together. (Colossians 1:15-17 ESV) Jesus was also the creator.
God spoke to the prophet Isaiah, Who has performed and done this, calling the generations from the beginning? I, the Lord, the first, and with the last; I am he. (Isaiah 41:4 ESV) You are my witnesses, declares the Lord, and my servant whom I have chosen, that you may know and believe me and understand that I am he. Before me no god was formed, nor shall there be any after me. (Isaiah 43:10 ESV) Thus says the Lord, the King of Israel and his Redeemer, the Lord of hosts: I am the first and I am the last; besides me there is no god. (Isaiah 44:6 ESV)
The Alpha and Omega, the first and the last, the beginning and the end is the one who created all things, who lived, who died and who rose from the dead and is coming again. He is God, he is Jesus.
That’s why we praise him!