Allah is (the Creator “al-Khaliq”), i.e., the One Who brought all the creations from inexistence into existence.  He is (the Sustainer “ar-Raziq”), i.e., the One Who provides the sustenance to His slaves.  He is (Knowledgeable “al-^Alim”), i.e., the One attributed with the Eternal and Everlasting attribute of Knowledge that does not change, increase, decrease, or get renewed.  He is Knowledgeable not like other knowledgeable ones because His Knowledge is Eternal and the knowledge of others is created.