Though this command and promise was given by God to the Israelites, I believe that the principle in the following verse is applicable to any nation of people that is willing to repent and submit to God. "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." - 2 Chronicles 7:14 (KJV)