I am the Alpha and the Omega: see 1.8; 21.6; the first and the last: see 1.17; 2.8; the beginning and the end: see 21.6. All three phrases proclaim the same basic truth in three different ways.
Quoted with permission from Bratcher, Robert G. and Hatton, Howard A. A Handbook on The Revelation to John. (UBS Handbook Series). New York: UBS, 1993. For this and other handbooks for translators see here .