G. Campbell Morgan emphasizes the critical distinction between rationalism and ritualism in the life of a nation, as illustrated in 2 Chronicles. He highlights Solomon's initial greatness and subsequent failure, demonstrating how formal religion can become impotent when disconnected from genuine faith and action. The history of Judah's kings serves as a cautionary tale of how neglecting the true essence of worship leads to national decline. Morgan warns that mere formalism in the Church today can result in societal decay, urging believers to strengthen their faith and live out their convictions authentically. The sermon calls for a revival of genuine worship and action to impact the nation positively.