In 2 Chronicles 7:12-22, God tells Solomon that he has placed his name in the temple Solomon built and will hear prayers from there. He promises to heal the land in times of plague, famine, or pestilence if the people will humble themselves, pray, and turn from their wicked ways to seek God. He also warns that he will destroy the temple to rubble if they do not.
The sermon talks about our call to prayer, the model of prayer in our Lord Jesus, and some ways in which we can participate in prayer for nation and our world, including praying through the Psalms.