Paul in Romans 14 urged the toleration of those who in error felt it was wrong to eat what they thought was unclean. If this is so, should we not also tolerate those who disagree with us over issues such as the method of baptism or the millennial reign of Christ, especially when it is impossible to determine with absolute certainty which views are less faithful to Scripture than others? Are nonessential truths something over which you break fellowship?
For further study:
The Bible in a year: