Redemptoris Missio §61

⁶¹ Without witnesses there can be no witness, just as without missionaries there can be no missionary activity. Jesus chooses and sends people forth to be his witnesses and apostles, so that they may share in his mission and continue in his saving work: "You shall be my witnesses in Jerusalem and in all Judea and Samaria and to the end of the earth" (Acts 1:8). The Twelve are the first to work in the Church's universal mission. They constitute a "collegial subject" of that mission, having been chosen by Jesus to be with him and to be sent forth "to the lost sheep of the house of Israel" (Mt 10:6). This collegiality does not prevent certain figures from assuming prominence within the group, such as James, John and above all Peter, who is so prominent as to justify the expression: "Peter and the other Apostles" (Acts 2:14, 37). It was thanks to Peter that the horizons of the Church's universal mission were expanded, and the way was prepared for the outstanding missionary work of Paul, who by God's will was called and sent forth to the nations (cf. Gal 1:15-16). In the early Church's missionary expansion, we find alongside the apostles, other lesser figures who should not be overlooked. These include individuals, groups and communities. A typical example is the local church at Antioch which, after being evangelized, becomes an evangelizing community which sends missionaries to others (cf. Acts 13:2-3). The early Church experiences her mission as a community task, while acknowledging in her midst certain "special envoys" or "missionaries devoted to the Gentiles," such as Paul and Barnabas.