Is the phrase "He decreed everlasting life for Himself" unfitting for Allah, given that He is the Ever-Living, the One who never dies, and that His life is an intrinsic attribute that requires no decreeing, unlike what He ordains universally or legislatively, which is subject to decreeing?

The phrase "Allah has decreed eternal existence for Himself" is not befitting of Allah Almighty, because eternal existence is an intrinsic attribute of Allah that does not change and is not subject to will. Writing implies predestination and will for what is contingent, not for what is essential to Allah's Being. Whereas the phrase "Allah has独占eternal existence" is permissible, meaning Allah alone possesses eternal existence, and scholars have used it.