Full Idea
The existence of God is not pre-evident, for if it was the dogmatists would have agreed about it, whereas their disagreements show it is non-evident, and in need of demonstration.
Gist of Idea
The existence of God can't be self-evident or everyone would have agreed on it, so it needs demonstration
Source
Sextus Empiricus (Outlines of Pyrrhonism [c.180], III.6)
Book Reference
Sextus Empiricus: 'Outlines of Pyrrhonism', ed/tr. Bury,R.G. [Prometheus 1990], p.188