The Doctrine of Fellowship and the Cost of Discipleship
It can be difficult to not participate in ecumenical activities, especially when such abstinence is called loveless or narrow-minded. However we must maintain our stance on fellowship, because we have been commanded to follow our Lord’s teachings. We do enjoy unity in the invisible church, in the Una Sancta, but we cannot always celebrate fellowship with other Christians in the visible church. When someone teaches contrary to the Word we must separate from them, we cannot agree to disagree.