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Some theists, observing that all 'effects' need a cause, assert that God is a cause but not an effect. But no one has ever observed an uncaused cause and simply inventing one merely assumes what the argument wishes to prove.

Dan Barker (2009). “Godless: How an Evangelical Preacher Became One of America's Leading Atheists”, p.108, Ulysses Press
Some theists, observing that all 'effects' need a cause, assert that God is a cause but not an effect. But no one has ever observed an uncaused cause and simply inventing one merely assumes what the argument wishes to