Many Christians recognize that they have been “called” to serve God. But what are the essential aspects of a healthy spiritual life? Through the ministries of the apostles Peter, Paul, and John, Watchman Nee identifies three distinct but complementary aspects of ministry. The first is evangelistic and its purpose is to bring people into the kingdom; the second seeks to build up God's people in union with Christ; and the third calls the Church to turn away from error and disunity. Today, as always, we need all three ministries, as you can read in What Shall This Man Do?