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The study of ecclesiology is part of the missionary effort of the church, especially when we study the doctrine to do God’s will.
By a chain of rhetorical questions, Paul leads us to the conclusion that the church’s ministry is crucial for the conversion of sinners: “How then shall they call on him in whom they have not believed? And how shall they believe in him of whom they have not heard? And how shall they hear without a preacher? And how shall they preach, except they be sent?” (Rom. 10:14–15). Though Paul was appointed to his ministry directly by God, even he was sent out by a church to do his missionary work (Acts 13:1–4), and he was supported by churches (Phil. 4:15–16).
The church performs its evangelism and missions not only through its preachers but through the proper functioning of all its members. Their financial support allows men to devote themselves to the ministry of the gospel (1 Cor. 9:14). Their prayers call down heavenly unction on the ministry of preachers (Eph. 6:18–20; Col. 4:3–4). Their godly character and good works are instrumental in bringing people to glorify the heavenly Father, for they are the salt of the earth and light of the world (Matt. 5:13– 16). Through wise conduct, gracious words, Christlike love, and earnest prayer, they witness to those outside the church (Col. 4:5–6; 1 Pet. 3:15).
Therefore, rightly ordered and spiritually healthy churches are crucial for fulfilling the Great Commission. According to the book of Acts, missions involves churches planting other churches among the nations. The study of ecclesiology is part of the missionary effort of the church, especially when we study the doctrine to do God’s will.
Excerpt by
Reformed Systematic Theology, Volume 4
Joel R. Beeke and Paul M. Smalley
