Originally Posted by
Tj3
the wording varies even from my NIV. But just the same if you read the wider context, it is still clear who is speaking. He identifies himself also in verse 12:
Isa 48:17
Listen to me, O Jacob,
Israel, whom I have called:
I am he;
I am the first and I am the last.
NIV
So we know that the NKJV translation is accurate. And we know who the first and last is:
Rev 1:17-18
And when I saw Him, I fell at His feet as dead. But He laid His right hand on me, saying to me,[fn8] "Do not be afraid; I am the First and the Last.
"I am He who lives, and was dead, and behold, I am alive forevermore. Amen. And I have the keys of Hades and of Death.
NKJV