You Do think that the definition of sin depends on the preacher you choose to listen to? That would make the preacher out to be God Himself or a plenipotentiary agent.
plenipotentiary
Even I as a wordsmith, lover of words, as well as just mainly anally retentive wordy (not talker mind you. But can hold my own with the best of them ;)), am very, very impressed ;D. Now what does it mean? Google awaits. Have a nice Saturday.