Why does God desire glorification?

If my interpretation of the ultimate purpose of human existence according to the Bible is correct, humanity exists to glorify the existence of God. In Isaiah 43:7, it is stated "everyone who is called by my name, whom I created for my glory, whom I formed and made.” This outlines humanity's purpose as a device to glorify God. But if God is a perfect being, why does he desire to be glorified? Normally, this characteristic would be associated with a being that is insecure or narcissistic, which are not to my understanding perfect traits. Surely this is a pretty fundamental attribute of God for which Christianity surely has a doctrine. In there a specific theological term used for this topic? And what do different Christian theological traditions teach about this issue? Is there there a general explanation that is broadly agreed on explaining this attribute of God or are there different explanations?