Hi Shermana and kjw47, I was hoping others would have chimed in about the "I AM" being a reference to Yahweh, and that Latuwr would have been debated, but as it stands, here is some evidence you both should consider.
First Shermana, you should consider that Yeshua would not have been speaking Greek when He referred to the "I AM," it would have been
Hebrew, and the Jews hearing Him would have taken up stones to kill him because He was using the equivalent of the Hebrew name of Yahweh.
Secondly Shermana and kjw47, when the high priest rent his clothes, he was in violation to the Law of Moses, but an Oral Law superseded it. In the Mishna it states:
"He who blasphemes is liable only when he will have fully pronounced the Divine Name. Said R. Joshua ben Qorha, "on every day (of the trial) they examine the witnesses with a substituted name. When sentence was to be given they did not declare him guilty of death with the substituted name, but they put everyone out and ask the most important of the witnesses, saying to him, "Say, what exactly did you hear?" And he says what he heard. And the judges stand on their feet and tear their clothing, and they may not mend them again.(m.San. 7:5)"
In the above quote from the Mishna, witnesses who heard someone blaspheme and pronounce the Divine Name, would substitute a name when describing the blasphemy. But when sentence was to be given, the main witness would state exactly what he heard (pronouncing the Divine Name), and then the judges would rend their clothing. No further witnesses were needed once Yeshua pronounced the Divine Name.
Furthermore, the word used for "power" in Mat 26:64 was a way in which Yeshua was referring to Elohim, as Him sitting on the Right Hand of The Majesty (Divinity) also referred to in Heb 1:3 & 8:1.
Yeshua was THE Yahweh of the OT and He gave up His divinity (Phil 2), to become a man, and upon His resurrection, He was restored to that former Glory as Yahweh Elohim. KB