The third Identity we find clearly given to us in the Gospel is that of missionary. The reality is that as we receive and believe the message of the Gospel there should be something in us that moves us to share this good news with others. It is in our missionary identity that the Father looks to see his family expanded. When we enter into the family of God we are immediately given the command to go and do likewise. We should be sharing and telling others of the goodness of Jesus and the joy that it is to be a part of the family of God.
In each of the written Gospels and Acts we find a moment when Jesus commissions his followers to go and reproduce themselves among all the peoples of the earth (Matthew 28:18-20; Mark 16:15; Luke 24:47; John 20:21; Acts 1:8). The command is for us to preach the good news of the kingdom to all creation that everything that has breath will know and praise the Lord.
As missionaries we look to see the family of God grow through our service to a good fatherly king. What we do as missionaries is perfectly described in the passage Jesus reads from in the book of Isaiah The Spirit of the Lord is on me, because he has anointed me to preach good news to the poor. He has sent me to proclaim freedom for the prisoners and recovery of sight for the blind, to release the oppressed, to proclaim the year of the Lord’s favor. (Luke 4:18-19)
When we believe the Gospel we should be moved to proclaim freedom, good news, and healing in the lives of humanity that is all around us. We are the extension of the mission Jesus tells us is fulfilled in him in the passage above.
Being missionaries we must understand that it is not in our own power that we do any of this work. It is by the power of the Spirit, which we receive upon belief in the Gospel, that we have everything we need for life and godliness. In Christ we become partakers of the divine nature, finding union with God and able to exercise the power available to us through the Spirit to see the oppressed freed, the blind gain sight, and the poor be sustained.
It is through missionary activity in the power of the Spirit that the Father grows his family. We go out looking for the lost children of God calling back to the Father that loves them so very deeply.