Who wants to hear that gladness shall end? No one that I know, but it will happen if a nation does not follow the Lord and honor Him, as He said of Moab,
“Gladness is taken away…I have made their shouting cease…it shall come to pass, when it is seen that Moab is weary on the high place, that he will come to his sanctuary to pray; but he will not prevail” (Isaiah 16:10-12).
Every nation of ancient times eventually experienced what Moab did. Shall it be different for nations today?
What then can you do for your nation? Pray for it relentlessly that anything that keeps your nation from living as God directs, would be removed.