Q. Mankind’s rebellion is through evil in the world, although Adam and Eve had no sin when they were created. It took Satan to introduce a rebellious thought. However, in the millennium Satan will be bound so there should be no evil. Am I correct?
A. Yes and no. After the 2nd Coming, believers who survive the Great Tribulation will come into the Millennium in their natural state (Matt. 25:31-34). In other words they’ll still have a sin nature. They’ll help to re-populate Earth. They and the children they bear will have a natural inclination to sin, so even with Satan bound sin will soon contaminate the world again.
In the New Jerusalem where we’ll live there will only be perfected saints, and nothing impure will ever be allowed in the city (Rev. 21:27) so there will be no sin there.