Biblical reasons for assembling:
Rejoicing, Celebration Col 3:16
Edification, Encouragement:Heb 10:24-25, Eph 4:11-16, Eph 5:19-20, 1 Thess 5:11
Equipping the Saints: Eph 4:11-16
Ministerial Work: Eph 4:11-16
Scriptural Instruction: Acts 2:42, Acts 5:2, Acts 20:17, Heb 5:11-6:2, 1 Tim 2:2, 1 Tim 3:2
Accountability: James 5:16
Fellowship Meals: 1 Cor 11:33, Acts 2:42 & 46
Prayer: Acts 2:42, Phil 4:6
Provide for widows & orphans: James 1:27
Communion: 1 Corinthians 11:23-26
Examples of preaching in Scripture. Note that the gift of evangelism(preaching) is always performed in public areas, not in a NT church. And no, the temple was not a NT church, it was the OT representation of the person & presence of God that has no place under the New Covenant.
1. city streets (Acts 2:12-40)
2. the temple grounds (Acts 3:1-26)
3. a desert road (Acts 8:26-40)
4. the synagogues of unbelieving Jews (Acts 9:20-22; 13:5; 13:14-41, 44-49; 14:1-3; 17:1-4; 7:10-12; 18:19; and 19:8)
5. the home of an unbeliever (Acts 10:34-43)
6. a riverside (Acts 16:13-15)
7. prisons (Acts 16:30-31; 26:1-29; 28:23-31)
8. the market place (Acts 17:17)
9. a hill dedicated to a pagan god (Acts 17:19)
10. a castle (Acts 21:34-22:21)
11. the governor's residence (Acts 23:35; 24:24-25)