(Pro 27:10 KJV) Thine own friend, and thy father's friend, forsake not; neither go into thy brother's house in the day of thy calamity: for better is a neighbour that is near than a brother far off.
What does it take to qualify as a “calamity” (343)? The term can be somewhat relative. What is the end of the world for one person might be a minor inconvenience to someone else. I remember on our wedding day my wife was horrified at the color of the trim on my shirt. Since I am mildly color blind I never did understand what the issue was. Raising property taxes is off the radar for someone who owns no property even though it will eventually raise their rent.
One of the concepts here is national calamity. The call here is to work together with those nearby.
So? Build bridges with those around you and be ready to offer help when you are called on.