The craft of performing the duties of a priest(noun)
Priestly policy directed towards worldly ends(noun)
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Use "priestcraft" in a sentence
"In Florence, too, the hell-on-earth created by priestcraft is coarsely and pungently denounced: young Vespucci capers happily around the pyre on the day that Savonarola is burned and the reign of clerical puritan terror brought to a close."
"Here, if any where, the cloven foot shows itself and teaches us that the only solid stratum underlying priestcraft is one composed of £ s."
"He’s engaged in priestcraft, using God to make money."