Jesus used this phrase to identify himself three times in the New Testament book of Revelation. As John opens his revelation about Jesus Christ, Jesus appears returning in the clouds and says, “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 Alpha and Omega are the first and last letters of the Greek alphabet and would signify the beginning of all things and the end of all things. The designation of ‘who is and who was and who is to come’ tells us Jesus was with God in the beginning of creation and will be with us in the future. He is the Almighty God. He is all knowing (omniscient), ever present (omnipresent) and all powerful (omnipotent). Only God is all these and He began all creation and will be there at the end.
At then end of Revelation, these words appear again in John’s vision. After the description of the New Jerusalem in 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.” Jesus, himself, will see to the creation of heaven and the new city of Jerusalem. In that city the water of life will be given freely to all who dwell there. What a glorious promise for us about our future home.
Lastly, Jesus reveals to John that He will be returning soon in Revelation 22:12-13 ““Look, I am coming soon! My reward is with me, and I will give to each person according to what they have done. 13 I am the Alpha and the Omega, the First and the Last, the Beginning and the End.” Here Jesus specifically says He was there at the the of beginning of creation and He will be there at the end of times.
What a powerful God we serve that from the beginning of time and creation to the end He will be unchanging and faithful. Hebrews 13:8 tell us “Jesus Christ is the same yesterday and today and forever.” He created all things and will see them through to the end of all time. He is unchanging in His character and purposes so we can rely upon Him. I love Hebrews 10:23 “Let us hold unswervingly to the hope we profess, for he who promised is faithful.” We can cling to the promises in God’s Word that He is unchanging and faithful. He will see to us in the future just as He has done in the past. Praise God!