From DHK's post # 36
Some are so big on SEPARATION they even will separate from non Baptist churches over minor issues like the King James Version, alcohol, and or music.
However - to many of those folks - KJV, alcohol, and music are considered MAJOR issues.
A divisive attitude by the leadership of a church can make a relatively non-essential issue become an essential issue that divides a church. So any issue or any difference can be made essential to fellowship if a divisive attitude is present by leadership or by members.
However, there are things that the Scriptures place emphasis upon that ought to be issues that divide brethren from brethren. In 1 Cor. 5:11 it is a "brother" that is to be separated from who is characterized by the issues listed. In 2 Thes. 3:6 it is a "brother" who is to be withdrawn from which habitually continues in defiance against apostolic commands. In Matthew 18:15-20 it is a "brother" who is to be confronted and separated from or treated like a "heathen" or a "publican" in regard to fellowship.
There are issues that the scriptures clearly and explicitly demand are "must" issues (Jn. 3:3; 4:24; Rom. 13:5; 1 Tim. 3:7; etc.) or issues that are absolutely essential (Lk. 13:3,6; Gal. 1:8-9; 1 Jn. 1:1-6; etc.) which separation from a "brother" is necessary so that his leaven of false doctrine does not leaven the whole church (Rom. 16:17-18).
The gospel and gospel ordinances are definitely issues for breaking fellowship with other churches (Gal. 1:8-9). For two to walk together there must be essential issues of fellowship they share in common with each other (Eph. 4:4-7; Heb. 6:1-2; 1 Tim. 3:15-4:6; etc.).
We are not to fellowship with the world (system of thought and deeds that oppose God) and when churches embrace such a system into their beliefs and practices they too become objects that must be separated from or else your church will be leavened by that type of fellowship.