Divine Powers in Late Antiquity

Is power the essence of divinity, or are divine powers distinct from divine essence? Are they divine hypostases or are they divine attributes? Are powers such as omnipotence, omniscience, etc. modes of divine activity? How do they manifest? In which way can we apprehend them? Is there a multiplicity of gods whose powers fill the cosmos or is there only one God from whom all power(s) derive(s) and ...