Original sentence: A closed-communion church is one that (perhaps with exceptions in unusual circumstances) excludes non-members from receiving communion.Churches which practice open communion allow all Christians to partake in the Lord's Supper, with membership in a particular Christian community not required to receive bread and wine, in contrast to pre-Reformation churches, which hold that what is received in their celebrations ceases to be bread and wine
Edited sentence: A closed communion church is one that (perhaps with exceptions in unusual circumstances) excludes non-members from receiving communion.In contrast, churches which practice open communion allow all Christians to partake in the Lord's Supper, with membership in a particular Christian community not required to receive bread and wine