Question 1: which. Question 2: that.
Descartes writes that the concept of God is an idea of perfection and therefore he do exists. The second proof on God is a geometrical one. Geometrically, the angles of a triangle add up to 180 degrees, but there are many triangles out there. Like the existence of a triangle with this feature it is a proof for the existence of God.
We can observe Marlowe's atheistic views in the blasphemous acts of protagonist Faustus's bargains with the devil, his practice of magic and the unforgiving salvation the character endures believing that he might be forgiven in the end are still disputed. He is not denying the superiority of God, but he question it, challenges it with his framework.
