GMB understands, just as all other Christian mission agencies and organizations should understand that she has a major duty of mobilizing the Great Commission lovers and local churches for their God-given task of global missions. She mobilizes individual churches and Christians therein for prayer, giving, and going for missions in all nations in order to plant reproducing churches where lifelong discipleship will be taking place. She mobilizes all categories of Christians in the churches such as children, teenagers, youths, students, adults, women, men, professionals, artisans, and others for mission task in her Home and International mission frontiers (fields).