prime-mover
Explanation
The Joke
The comic tackles the classic theological question "What existed before God?" A man asks God: "Dear God, what was there before you?" God responds that this is a nonsensical question, because "before" implies time, but time itself exists as part of creation. Since God exists beyond time, there is no "before" -- God created himself from nothing. The man reacts with an awed "Woaaah."
The scene then cuts to "Meanwhile, in Heaven," where we see God (depicted as a round character with a halo) saying to a companion: "Quiet! I'm talking to the humans! Oh my God, they are so easy. Banana daiquiris and black socks!" -- revealing that God's profound philosophical answer was actually just a bluff to dodge a question he didn't know the answer to, and he's privately amazed at how easily impressed humans are.
The Humor
The humor operates as a bait-and-switch. The first half presents a genuinely sophisticated theological argument -- one that serious philosophers and theologians (like Thomas Aquinas with his "Prime Mover" concept) have actually made. The idea that God exists outside of time and therefore the question of temporal precedence is meaningless is a real philosophical position. But the punchline deflates this entirely by revealing God was just making things up and marveling at how gullible humans are. The detail about "banana daiquiris and black socks" suggests God is actually quite unsophisticated -- a fraud in flip-flops rather than an omniscient being.
References
The title "Prime Mover" refers to Aristotle's concept of the "Unmoved Mover" (or "Prime Mover"), the first cause that set everything in motion without itself being caused. This concept was later adopted by Thomas Aquinas as one of his Five Ways to prove God's existence. The comic's version of God's answer closely mirrors the actual theological argument about divine atemporality.