Definition, Objectivity and the Number of Divine Substance's Attributes in Spinoza's Thought

The problem of God’s attributes, with it’s semantic, epistemological and ontological aspects, has very important position both in theology and philosophy. Spinoza as a 17th century rationalist philosopher that has based his metaphysics upon the Idea of God as a first cause, and the only substance, say that to conceive God’s Essence isn’t but to conceive it’s attributes. In this article I have tried to make some systematic responses to the questions about definition, objectivity and the number of God’s attributes in Spinoza’s philosophy. my method of research is descriptive-analytic. In abstract it can be said that Spinoza in his final thoughts, believes that attributes of God are knowable by intellect, objective and infinite in being and number. He also makes distinction between attributes of God and his properties and negates some attributes that theologians ascribe to God to make distance from anthropomorphism.