... if MY people that are called by MY name intervene (intercede), humble themselves, seek the face of God ... return (turn back), stop traveling any distance down a evil path ... and HEAR heaven ... God will accept and forgive and heal their land ... (from NASB Lexicon for 2 Chron. 7:14) (emphasis and ellipses are mine)
The people who do (perform the action talked about in 2 Chronicles 7:14) are those who have the blood applied. Not the nation (a country with defined boarders). God called HIS people, HIS flock (Israel; today because Jesus reconciled them, Jew and Gentile), to humble, seek the face of God, repent, and intercede.
We are seeing today what happens when a people travel down a path that is evil. Non-believers will never turn on their own. No man seeks God. It is the role of the church to present the Gospel to a lost and dying world.
The 'prince of the power of the air' wants everyone to believe it is about race, guns, life-styles, republicans, democrats, 'haves and the have-nots'. And wow, a lot of people do. I mean they must - just look at the news. It isn't about any of that. It is about eternity and where you will spend that eternity. John 3:18 needs to be understood today, "Whoever believes in him is not condemned, but whoever does not believe is condemned already, because he has not believed in the name of the only Son of God."
Eternity is real. Every one WILL live forever. So, I guess it is true - "It's all about location, location, location."
John 14:3 "And if I go and prepare a place for you, I will come again and will take you to myself, that where I am you may be also." Well folks, he did go. Don't worry about the "if" in that verse. But then again, that's exactly the question ... belief.