Chuck Smith emphasizes the prophetic message of Jeremiah 23:5, highlighting the failure of Judah's kings to lead righteously, which has resulted in national disaster. He points to the hope of a coming righteous king, Jehovah Tsidkenu, who will embody true righteousness and restore the nation. Smith explains that righteousness is not easily attained and contrasts the challenges of being right with the ease of being wrong, ultimately affirming that Jesus is our righteousness through faith. The sermon underscores the importance of recognizing God's eternal nature and the need for righteous leadership in society.