Disasters in the family are never coincidental
For us Christians who believe in God's sovereignty, there is no such thing as 'coincidence' (Ecclesiastes 9:11). Everything happens within God's sovereignty and providence, and there is nothing that happens by mere chance. I believe that everything takes place according to God's sovereign will. Therefore, personally, I do not accept the phrase 'Good luck,' meaning 'I wish you good fortune.' I also believe that 'timing' is such that not only for each of us, but for our families, our churches, and even our nation, a sudden disaster could strike at any time (v. 12, Korean Modern Bible). Just like a domino effect, when you touch the first domino with one finger, all the dominoes behind it will fall one by one. Even though it seems that the disasters we face occur in succession and often leave us in shock, not knowing what to do, surely the sovereign God will lead us to repentance and rebuild us, one step at a time, from the foundation. Therefore, the unexpected disastrous events that happen in God's sovereignty are, as God promised, an 'opportunity' to build us up (Ecclesiastes 9:11; Matthew 16:18).