Dictionary.net

Priestly policy; the policy of a priesthood; esp., in an ill sense, fraud or imposition in religious concerns; management by priests to gain wealth and power by working upon the religious motives or credulity of others.

Priestly policy: the craft or schemes of priests to gain wealth or power.

n. The stratagems and frauds of priests ;--dexterous use of the priestly office and character to impose on the credulity of others, and acquire influence, power, wealth, &c.