[767] "And he should not utter scheming speech (payuttavācā)": What is scheming speech? Here someone utters speech scheming for robes (cīvara), utters speech scheming for almsfood (piṇḍapāta), utters speech scheming for lodging (senāsana), utters speech scheming for medicinal requisites for the sick — this is called scheming speech. Or else, for the sake of robes, for the sake of almsfood, for the sake of lodging, for the sake of medicinal requisites for the sick, he speaks truth and he speaks falsehood, he speaks divisively and he speaks non-divisively, he speaks harshly and he speaks non-harshly, he speaks frivolous talk (samphappalāpa) and he speaks what is not frivolous, and he utters speech with deliberation (mantā) — this too is called scheming speech. Or else, with a mind of confidence he teaches the Dhamma to others, thinking: "Oh, that they might listen to my Dhamma! And having listened, may they gain confidence in the Dhamma; and being confident, may they show toward me the manner of those with confidence!" — this is called scheming speech.
"And he should not utter scheming speech": even down to speech that teaches the Dhamma, he should not utter scheming speech, should not speak it, should not voice it, should not explain it, should not express it; he should abandon scheming speech, dispel it, make an end of it, and bring it to non-existence; he should be one who refrains from scheming speech, who abstains, who desists, who has departed from it, has relinquished it, is released from it, is detached from it; he should dwell with a mind made free of boundaries. Therefore: "and he should not utter scheming speech."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.