There was once a man who lived in a house. And next to this house grew a bunch of trees. Now during fall the trees leaves fall off and land in this man gutters. The gutters on the south side tell the man “don’t worry, these leaves cant stop me, no need to clean them out, I have this under control…” The gutters on the North say “They are just little nuisances don’t worry about them” So the man doesn’t clean out the gutters. But then a storm comes and a mighty rain falls. The water starts to fill up the gutters and the leaves start to move into the down spout holes and cause the gutters to fill up with leaves and water. The gutter starts to break off of the house. The storm hurts the gutter. And now it has to be fixed in the middle of the storm in a time that neither the man nor the gutter wants to be fixed.
The man is God/Jesus/Holy Spirit who gives us opportunities and for warns us about the things to come to help us prepare. The gutter is us who are called to be and walk like Jesus that take preparation. The leaves are demons/negative things in are lives that are small and not important until the Storm (the glory and shaking of the Lord) comes and if we are a cleaned out gutter it will be a amazing experience but if not Everything Will Be Shaken.
Hebrews 12:26-29
At that time his voice shook the earth, but now he has promised, "Once more I will shake not only the earth but also the heavens. The words "once more" indicate the removing of what can be shaken—that is, created things—so that what cannot be shaken may remain. Therefore, since we are receiving a kingdom that cannot be shaken, let us be thankful, and so worship God acceptably with reverence and awe, for our "God is a consuming fire."