We cannot say that for sure, as we know the Devil and other angels sinned. I would simply say that the saints in heaven would not sin, even if they could, for those and glory of those who fought sin here on earth, against the world's flashing the devil. And having now been freed from those three plagues, that will not be deceived anymore by the pleasures of sin which but for season, you want to grovel in its sewer now that they can fly like an eagle. To God be the glory, and how I wish I could live without sin every day but to the glory of God.
However, DaveMSmith belongs to occult led by a man vainly "puffed up by his fleshly mind" and who almost makes Joseph Smith looks sober, and with whom we have dealt with before: http://www.freerepublic.com/focus/religion/3023264/posts?page=118#118 (and see links)
A lot of that going on lately on the RF.
Swedenborg never 'led' any Church. He lived from 1688-1772. By all accounts, he was a humble man who was a public servant. He realized no personal gain for his theological works. His Writings have had profound influence in the years following his death.
The Bible is full - cover to cover - with Divine vision... is that nonsense, too?