Thomas Brooks delivers a poignant sermon titled 'A Whore's Forehead,' emphasizing the alarming lack of shame in society regarding sin, as illustrated by the scriptures from Jeremiah. He laments the pride and shamelessness that have overtaken the people, leading them to sin without remorse, and calls for Christians to retreat into their closets to weep for the abominations that dishonor God. Brooks draws parallels between the ancient Israelites and contemporary society, urging believers to mourn in secret for those who have lost all sense of shame. He highlights the need for heartfelt repentance and intercession for a world steeped in wickedness, echoing the tears of the prophet Jeremiah.