This sermon emphasizes the vocation of every believer, drawing from biblical examples such as the Great Commission, Isaiah's call, and various Psalms. It underscores that all believers have a general call to represent God and His kingdom, as well as specific assignments based on their skills and talents. The sermon highlights the importance of finding one's vocation for a fulfilling Christian life beyond church attendance and moral living. It challenges believers to see their work as serving God and to understand that discipleship involves training for ministry. (Ephesians 4:11-12)