According to witnesses there was no warning of an impending collapse. Many Christians have much in common with this pedestrian walkway which collapsed. They look okay on the outside but the years and the stress of the storms of life weaken them until they suddenly collapse. An addiction destroys another life. A long marriage falls apart.
Moral failures bring about public disgrace.
First, we should be aware of the destructiveness of sin. Sin always leads to death. Second, we should avoid the grasp of the enemy. To keep ourselves has the meaning of holding fast, to keep your guard up. When we are faithful in maintaining our fellowship with God our understanding of Him grows.