What do we learn from "Ani Hashem"?
Malbim: I Myself am Hashem. I am hidden from all understanding - I must exist. I do not depend on another.
Why does it say "Hu Shmi"?
Rashi: My name [Hashem] is an expression of Mastery and power.
Radak: This name is special for Me, unlike the name of the idols.
Malbim: Through this name, I am recognized to all My creations via My actions. I cause everything to exist and supervise over it.
Why will He not give His honor to another?
Rashi: It is upon Me to show that I am Master. Therefore, I will not give My honor to another.
Radak: Even though idol worshippers 'join' them to Me and call them Elohim, they cannot join with Me in this name. I am Master over everything, and I will not give My honor to another, like I did until now. I did not judge the Resha'im, therefore people did not recognize Me and turned to idols. After I take Yisrael out of Galus, I will do great wonders with them, and all nations will recognize that there is none other than Me, after I judge the Resha'im - "v'Hayu Chol Zedim v'Chol Ose Rish'ah Kash v'Lihat Osam ha'Yom ha'Ba" (Mal'achi 3:19).
Malbim: The philosophers understood that Hashem must exist, and He has no limits. They concluded that He cannot have desire, change of knowledge
What is the connection of Hashem's praise to idols?
Radak: I will no longer give My praise to idols. "Lo" applies also to this.
Malbim: Some nations admitted that Hashem created the world amidst desire, but attributed physicality to Him; via this, they came to serve idolatry, like the Akeidah explained. (I will cease this!)