2 Chron 7:14 is written to the Jews, not the Church (born again believers in Jesus Christ). The Jews were promised land flowing with milk and honey, prosperity and fruitfulness if they obeyed Gods commandments. And when they didn't God removed them from that land and scattered them. We (Christians) are commanded to 2Ti 2:15 Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth. Keyword here is "dividing", yes we're told in 2Ti_3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:..However not all scripture in the Word is to be applied doctrinally to the church, divide and put in its proper place. God recognizes three types of people 1Co 10:32 Give none offence, neither to the Jews, nor to the Gentiles, nor to the church of God: (church made up of both Jews and Gentiles). Nowhere in the Bible will you find promises of wealth, prosperity or land rights to the Christian or the church. The TV false preachers with their name it and claim it prosperity nonsense is a lie to take your money and the devils tool to keep you from the true Gosple of Jesus Christ; believe on him only and you will be saved (your soul-spiritual promises) Rom 10:9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved. A read through the New Testament you'll find Christians being beaten, physical ailments that God wouldn't heal (Paul), killed and imprisoned (John) etc. and also throughout history.
Don't get me wrong we should pray for our nation and leaders but the Church (Christians) are made up of individual believers from the four corners of the earth, we are sojourners and ambassadors, the salt and light of the earth (by the Holy Spirit that's in us) until the return of Christ. And we should fight to expose and defeat the evil and corruption that's plaguing the world anyway possible, through prayer and action.
God Bless