It is done. I am the Alpha and the Omega, the Beginning and the End. To him who is thirsty I will give to drink without cost from the spring of the water of life. (NIV)
1. For commentary on the phrase “Alpha and Omega,” see Revelation 1:8.
2. The exact meaning of the phrase “the Beginning and the End” is not given. Scholars give differing explanations of the phrase, but the meaning must be closely associated with the concepts of “Alpha and Omega” and “First and Last” because these titles are associated together (see Rev. 22:13). We have seen from the study of the title “Alpha and Omega” that it refers to the start and finish of something, and we have seen from the title “First and Last” (Rev. 1:17) that Christ will raise up the generations of people unto everlasting life. It is clear why Christ would be called the “Beginning and the End” in association with these concepts. He is the firstborn from the dead, and he will be the one to call the last people out of their graves, he is both the Author and Finisher of faith, he is the Man by whom God will judge the world and he is the one who will then create and bring to completion the next ages (see the notes on Heb. 1:10). There is no compelling reason to assume Jesus is God simply because of the title, “the Beginning and the End.”
Rachovian Catechism, pp. 161-163