Does the phrase "You are Allah, You know everything" constitute apostasy if said in a moment of anger?

This statement is not disbelief (kufr), because its intent is to deny the speaker's insistence on their opinion without proof, and to clarify that only God knows the unseen. The intention was not to attribute divinity or knowledge of the unseen to anyone other than God. The meaning of the statement is: "You are not God to know everything." It is advised not to repeat such phrases.