How can believers die on other than Islam, despite the command to fear Allah as He should be feared and to die as Muslims in the noble verse: (O you who have believed, fear Allah as He should be feared and do not die except as Muslims)?

A person may perform the deeds of the people of Paradise, then perform the deeds of the people of Hellfire, and the decree overtakes him, so he enters it. And a person may perform the deeds of the people of Hellfire, then perform the deeds of the people of Paradise, and the decree overtakes him, so he enters it. For this reason, the righteous used to fear an evil ending and frequently remember death, so that a person remains steadfast in what is obligatory upon him and keeps away from what is forbidden to him until he dies upon Islam. For whoever lives upon something dies upon it, and whoever dies upon something is resurrected upon it.