God's mission extends to all peoples, with believers called to fill what is 'lacking' in Christ's afflictions—not by adding to His complete sacrifice, but by proclaiming it to those who haven't heard. From Genesis to Revelation, Scripture reveals God's heart for all nations to know Him. Participation begins with willingness, whether serving locally or globally, using our unique gifts. The goal of Christian ministry is to proclaim Christ, warn everyone of God's holiness, teach with wisdom, and help believers mature spiritually. God continues working globally, bringing people to faith across cultures and creating unprecedented opportunities to share Christ.