An excerpt taken from the Christian Confession of Faith:
VI. THE CHURCH
A. The Church is an entity created by God by the power of the gospel with Jesus Christ as her Head and Husband, to the praise of the glory of His grace. Wherever the true Church is found, the true gospel is always found. [Psa 2:6; 46:4-5; 48:1-2,11-13; 50:2; 99:2; 102:13-21; 111:1; 118:22; Isa 2:3; 28:16; 33:5-6; 35:8-10; 52:7; 62:12; Mat 16:18; Act 20:28; Rom 12:4-5; 1Co 12:24,27; Eph 1:6,13; 2:20-22; 5:23-32; Col 1:18; 1Th 1:1; 2Th 1:1; 1Ti 3:15; Tit 1:9; 2:15; Jam 1:21; Rev 21:12]
B. It is the duty of believers to assemble for worship and fellowship. [Mat 18:20; Act 2:42; Heb 10:24-25]
C. The worship in the assembly must be conducted decently and in order, in spirit and truth, according to the commands of Scripture. [2Ch 29:30; Psa 22:22; 35:18; 89:7; 107:31-32; 149:1; Joh 4:23-24; 1Co 11:1-12:31; 14:33-40; Eph 5:19; Col 3:16; 1Ti 2:1-2,8-12]
D. It is the duty of the assembly to excommunicate anyone in the assembly who confesses belief in a false gospel or who confesses that at least some who believe in a false gospel are regenerate (including anyone who considers at least some universal atonement advocates to be regenerate), as such persons are clearly unbelievers. [Deu 13:1-5; Psa 26:4-5; 101:4,7; Mat 7:15-20; Mar 16:16; Joh 6:43-45; 7:24; Rom 10:3; 16:17; 1Co 10:21; 16:22; 2Co 6:14-15; Gal 6:14-16; Eph 5:6-12; 1Ti 6:3-5; 2Ti 3:5; 1Jo 2:22-23; 4:2-3; 2Jo 9-11]
E. It is the duty of the assembly to rebuke and call to repentance anyone in the assembly who is openly disobedient to God’s law, including anyone who has sinned against another in the assembly. If the person persists in this sin without repentance, it is the duty of the assembly to excommunicate this person, as no such person will inherit the kingdom of heaven. [Psa 101:7-8; Mat 18:15-18; 1Co 5:7,11-13; 6:9-10; 2Co 13:1; 2Th 3:11-12; 1Ti 5:20; 2Ti 3:2-7; 1Jo 2:15-16; Rev 21:8]
F. If anyone in the assembly who has been rebuked (but not excommunicated) repents of sinning against a brother or of any other open disobedience to God’s law, the assembly is to forgive him and restore him to fellowship. [Mat 18:20-21; 2Co 2:5-8; Gal 6:1]
Agrammatos 