Kommentar zu Jeschijahu 42:8

that is My Name This is explained as an expression of Lordship and power. I must show that I am the Master. Therefore, My glory I will not give to another, that the heathens shall rule over My people forever and say that the hand of their God is powerful.

That is my name, my real name.¹³The Tetragrammaton is called שם הנכבר the honoured name or the honourable name. Sometimes it is called שם עצם the proper name, because this name alone always signifies the Almighty, while all other names of God admit of other significations. Besides the tetragrammaton there is no other proper name of God in the Scripture. And my glory, that I tell the prophet what is to come, and that he reveals them in my name to honour me. ולא תהלתי═ותהלתי. The negative לא not of the preceding phrase לא אתן, refers to this one also.