In another thread the question was brought up about repitition in scripture and if there was any significance or if it was a bad translation, although we know there is no "perfect" translation there is a reason why some things are written, repeated & repeated again;
TRUTH NUMBER 11
"Grace be into you, and peace, from Him which IS and which WAS, and which IS TO COME…" (Rev. 1:4).
"I am Alpha and Omega, the beginning and the ending, says the Lord, which IS, and which WAS, and which IS TO COME, THE almighty" (Rev. 1:8).
"Holy, holy, holy, Lord God Almighty, which WAS, and IS, and IS TO COME" (Rev. 4:8).
"Jesus Christ the same YESTERDAY, and TODAY, and FOR EVER" (Hebrews 13:8).
When God wants to emphasis something, He repeats it. When He really wants to emphasize something, He repeats it again. When He really, really, really wants to emphasize something, He repeats it multiple times. Let’s count the times God uses this phrase:
"Him which IS, and which WAS, and which IS TO COME" Rev. 1:4).
"I AM alpha and Omega, the BEGINNING and the ENDING, which IS, and which WAS, and which IS TO COME" (Rev. 1:8).
"I am Alpha and Omega, the FIRST and the LAST" (Rev. 1:11).
"I am the FIRST and the LAST" (Rev. 1:17).
"I am He that LIVES, and WAS DEAD; and, behold, I AM ALIVE" "Rev. 1:18).
"the FIRST and the LAST, which was DEAD, and is ALIVE" (Rev. 2:8).
"Holy, Holy, Holy, Lord God Almighty, which WAS, and IS, and IS TO COME" (Rev. 4:8).
"Oh Lord God Almighty, which ART, and WAS, and ARE TO COME" (Rev. 11:17).
"Thou art righteous, O Lord, which ARE, and WAS, and SHALL BE" (Rev. 16:5).
"I am Alpha and Omega, the BEGINNING and the END" (Rev. 22:13).
The testimony of Jesus Christ does not change, and Christ Himself does not change, and therefore His dealings with humanity do not change, other than that there is coming a consummations of sin and death. Christ is not changed, but WE WILL BE CHANGED to conform to the Image of Jesus Christ.
(Copied from Ray Smith's 12 Truths)