Why not use a biblical example, like Jacob when deceiving his father Isaac? Jehovah himself seems to have no problem with deceiving. Or 1 Kings 22:19-22 "Who will deceive Ahab?" Oh, did I mention the GB?
W 12/16 Set free by Undeserved Kindness
Are we determined to avoid both lying and deception? (See paragraph 19)
19 For instance, a man tells his boss or fellow workers that he cannot be at work the next day or that he must leave early because he has a “medical” appointment. In fact, his “medical” appointment is merely a brief stop at a pharmacy or a quick visit to the doctor’s office to pay a bill. His real reason for not being at work is so that he can get a head start on a trip or so that he can take his family to the beach. There may have been a grain of truth in his mentioning a “medical” appointment, but would you say that he was being honest? Or was he being deceptive? You may know of similar instances of deliberate deception. Perhaps this is done to avoid punishment or to profit at others’ expense. Even if no outright lie is told, what of God’s direction: “You must not deceive”? Think, too, of Romans 6:19, which says: “Present your members as slaves to righteousness leading to holiness.”