Terminology which sometimes confuses Brethren and non-Brethren alike is the distinction between the Open assemblies, usually called "Chapels", and the Closed assemblies (non-Exclusive), called "Gospel Halls." Contrary to common misconceptions, those traditionally known as the "Closed Brethren" are not a part of the Exclusive Brethren, but are rather a very conservative subset of the Open Brethren. The Gospel Halls regard reception to the assembly as a serious matter. One is not received to the Lord's Supper but to the fellowship of the assembly. This is important because the Lord's Supper is for believers, not unbelievers.