2Ch_7:14 If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.
A promise made to Israel the people regarding Israel the land. The principle is valid, even applicable, were sin not such a Pandora once it's gotten out of the box. People, even Christian people will not DO what it takes to make this change. It usually takes a society-ending disaster. Sadly.