This paper is intended to clarify Aristotle's terms ”ο θεός” (God), ”οι θεοί” (gods) and ”το θειον” (divine) along with their implications. It is pointed out that ”ο θεός”(God) and ”οι θεοί” (gods) are never the subjects of his discourse but rather the evidence he provides to prove his views regarding another non-theological theme or thesis. Therefore, the existence of God and gods is never part of his discussion. Finally, to clarify his ideas about ”God,” we further explore the implications of his ”θεολογία” (theologia), ”θεολογος or θεολογόι” (theologian) and ”επιστημη θεολογικηt” (episteme theologike).