God is the first and greatest missionary seeking the lost: Gen. 3:8, 9; John 3:16; Luke 19:10
The Great Commission was given to individuals: Matt. 28:18-20; Acts 1:8
The purpose of the local church is to build up and equip believers so that they can function within the assembly and go out to obey the great commission. I Pet. 2:5, 9 It is of great importance that the assembly have clear goals for the accomplishment of this responsibility as outlined in Eph. 4:11-16. There is no Biblical precedent for a gospel meeting in the church and appeals to the unsaved to come in to hear the gospel.
It is evident from a study of the book of Acts that the work of evangelism was carried out simply; in complete dependence upon God for guidance (Acts 8:26, 16:6-10) and without church campaigns, elaborate missionary organizations, fund raising, promotions, etc.
The gospel message and how to share it should be understood by every saint in the assembly; I Pet. 3:15. It should be given out simply and with power, I Cor.2:1-5. To this end, the great doctrinal sections of Scripture, such as Romans 1-8 should be frequently taught in the assembly as a high priority of the evangelist and the teacher, Eph. 4:11-12.
Evangelism - preaching the gospel as the basic pioneer effort in a new area. Example: preaching the gospel in Galatia (Acts 14:6-7).
Edification - teaching and building up these believers on the return trip through this area - Acts 14:21-22 (all part of the first missionary journey).
Establishment - helping the believers to become matured and settled in the faith - Acts 15:41 - 16:5 (second missionary journey) and Acts 18:23 (third missionary journey).
Extension -
The Seven Letters to the Seven Churches of Revelation 2 and 3. Christ walks in the midst to inspect and clean the light, and will remove it if necessary.