"And we have seen and do testify that the Father sent the Son to be the Saviour of the world," 1 John 4:14. Here is the substance of the united witness of the apostles. Here is that to which they gave united testimony. They spoke with one voice of the actions of the Father and of the Son and of the singular purpose of the Godhead -- the salvation of sinners. This is the good news of the gospel. It is the mission of Christ to save the world. Consider: I. THIS MISSION OF MERCY STARTED IN HEAVEN II. THIS WAS A MISSION OF DELIVERANCE III. THIS WAS A MISSION INVOLVING GREAT SACRIFICE