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My guess is that all new arrivals in heaven are immediately shuttled off to quarantine in a sort of boot camp where they're indoctrinated with the 100% correct interpretation of the Bible so there'll be no debating with the general population when they get out.
Also, in boot camp, they're schooled in etiquette because people just in from the world can't expect they'll fit right into heaven's peaceful society upon arrival. I'd imagine that those of us who make it to heaven will need some pretty large adjustments made to our manners; most of all, how to keep a genuinely civil tongue in our heads.
"Let your conversation be always full of grace, seasoned with salt." (Col 4:6)
Grace can be defined as kind, courteous, gentle, patient, lenient, inclined to good will, generous, charitable, altruistic, compassionate, sympathetic, thoughtful, cordial, affable, genial, sociable, cheerful, warm, sensitive, hospitable, considerate, and tactful.
I gather from the language and grammar of Matt 5:13, Mark 9:50, and Luke 14:34 that the primary purpose of salt is to enhance flavor and make otherwise naturally insipid and/or bad-tasting things palatable, viz: salt can be thought of as diplomacy; roughly defined as conversation that makes an effort to maintain peace rather than provoke conflict and/or annoy people and make them uncomfortable.
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