Soon after making first contact ...

A humanoid alien held up samples of worldly religious texts.

"I've come from afar seeking your help."

Followers raised their hands in praise.

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"All I ask is one thing in return ..."

It displayed oddly shaped tools.

"Help me gather resources for the needy throughout the galaxy."

— — —

A cloaked ship orbited Earth.

"Sir, I've spotted another one."

"Let me guess: offering a holographic paradise and secretly healing with our ubiquitous nanites?"

"Easier than that, sir. Nanites, yes, but appealing to their deeply engrained religious beliefs."

"All right, prepare for an arrest."