Denominations that only allow members of their own denomination (or certain approved denominations) to take communion with them practice what’s called “closed communion.”
Denominations that allow all other believers to take communion with them practice “open communion.”
As a rule, Christian denominations do not allow non-believers to take of communion. And most do not allow the unbaptized children of members to share in communion.
The Restoration Movement are somewhere in between open and closed, because they follow Alexander Campbell’s advice to neither “invite nor debar” visitors to or from communion. This is rather like Paul’s advice to the Corinthians not to ask whether meat they are offered has been sacrificed to an idol. Continue reading