Rev. 1:4, 8. The name of God, I AM, is susceptible to multiple interpretations in terms of tense. Therefore, it can be translated “I am that I will be,” “I am what I was,” “I will be what I am.” All those are possible ways of translating. You put all those things together and see them as different slices of the same reality. What they are saying is that God is, in all times and at all places, simply who God is. God will be always what He was, and is, and will be. His being takes in all the different verb tenses and concentrates them into one eternal act, the act of the divine being. Therein lies the identity of Jesus Christ.