The Watchtower Society itself writes the following in the book "Come Jehovah but closer" in chapter 1 (pages 9 - 10):
8 In response, Jehovah explained the meaning of his name. He said to Moses: "I will prove myself what I will prove myself" (Genesis 2:3:14). Many Bible translations at this point say, "I am who I am." The more accurate reproduction in the New World translation, however, shows that God did not merely affirm His own existence. Rather, he told Moses - and basically all of us - what lies behind that name. Jehovah would "turn out" to be, or become, whatever it takes to make his promises come true. In the translation by J. B. Rotherham, the passage aptly reads: "I will become whatever I please: "Whatever the situation, whatever the need... God will 'become' salvation. "
Further a beautiful illustration is given:
10 An example: Parents know only too well how versatile and adaptable they must be in dealing with their children. In the course of a single day, a mother is sometimes required to be a nurse, cook, teacher, educator, judge and much more.
One should consider the following: If one believes that Jesus was only the Master of Yahweh, how can it be said that Jesus Christ came into his possession if he himself is not the Creator of all things?
Johannes 1,11 He came into his property; and his did not take him in.
In Zechariah 11:12 JHWH says: "And I said to them: If it is right in your eyes, give me my reward, but if not, let it be. And they weighed up my reward: thirty shekels of silver."
Matthew 27, 3-10 Now when Judas, who had delivered him up, saw that he was condemned, he repented, and brought the thirty pieces of silver back to the chief priests and elders, saying, "I have sinned, for I delivered innocent blood. And they said, What is this to us? You watch! And he cast the silver pieces into the temple, and departed, and went and hanged himself. And the chief priests took the silver and said: It is not allowed to throw them into the temple treasure, because it is blood money. But they took counsel and bought the potter's field for the burial of the strangers. That is why that field has been called the Field of Blood to this day. Then was fulfilled what was spoken by the prophet Jeremiah, who said: "And they took the thirty pieces of silver, the price of the treasured, which had been estimated by the sons of Israel, and gave them for the potter's field, as the Lord commanded me."
In Zechariah 11:12, JHWH says about himself: "And I said to them: If it is right in your eyes, give me my wage, but if not, leave it! And they weighed my reward: thirty silver shekels." (Here JHWH speaks prophetically about himself [important!!! see also Zechariah 12,10 in comparison with John 19,37], thirty pieces of silver Judas got for betraying Jesus.)
Zechariah continued the drama by symbolically depicting how (JHWH = Jesus) asked those whose personal shepherd he wanted to be what he was worth to them. As a mocking gesture, the leaders offered 30 pieces of silver, which was compensation for a slave killed by an ox (cf. 2 Mo 21:32). This is exactly the sum that Judas Iscariot received for his betrayal of the good shepherd (Mt 26:14-16).
The 30 pieces of silver are a prophetic hint at the identity of Jesus. JHWH and Jesus have the same price in the eyes of the leaders of Israel. The price corresponds to the compensation for a slave killed by a cattle.
Johannes 19,19-21 Piláº¡tus also wrote a title and put it on the stake. It was written: "Jesus, the Nazaráº¹ner, the King of the Jews". Therefore, many of the Jews read this title because the place where Jesus was brought to the stake was near the city; and it was written in Hebrew, Latin [and] Greek. But the chief priests of the Jews said to Piláº¡tus: "Do not write: 'The King of the Jews', but that he said: 'I am King of the Jews. " (New World Translation)
On the post (cross) this sign was written in Latin and Hebrew:
There one can understand why the Jews said to Piláº¡tus: "Do not write: 'The king of the Jews', but that he said: 'I am king of the Jews. " In other words they said: "Do not write, he is JHWH, but: he said of himself, he is JHWH".