In Catholicism, "Go and make disciples of all nations" is known as the Great Commission . Found in the Gospel of Matthew (Mt 28:19), it is the foundational mandate for the Church to spread the Gospel, baptize, and teach the faith to all people . [ 1 , 2 , 3 , 4 , 5 ] The Great Commission is often discussed alongside the Great Commandment (to "Love the Lord your God with all your heart... and love your neighbor as yourself" in Matthew 22:37-39). Together, they form the twin pillars of Catholic life: internal holiness through love and external mission through evangelization. [ 1 , 2 , 3 , 4 , 5 ] Core Elements of the Great Commission Evangelization: Sharing the Gospel and introducing others to a transformative relationship with Jesus Christ. Baptism: The sacramental entry into the life of the Trinity and the Church community. Catechesis: Teaching others to observe and live out the commands of Christ. The Divine Promise: Jesus assures His followers, "And ...