What does the Bible tell us about the second coming of Jesus Christ? How is it, as Scripture says, that "every eye will see him" when He comes? How will the nations react?

Photo by Jeremy Brooks, "With Nothing To Hold On To" https://www.flickr.com/photos/jeremybrooks/3438759770/ released under a CC cc-by-nc 2.0 license: https://creativecommons.org/licenses/by-nc/2.0/