Broadly speaking, baptism tends the front door of the church, while the Lord’s Supper tends the back door. Properly administered baptism (i.e., baptism of believers only upon a credible profession of faith) helps to ensure that only genuine believers are admitted into the membership of the church. Properly administered communion (i.e., communion given only to members in good standing of evangelical churches) helps to ensure that those who are under church discipline for unrepented sin do not scandalize the church or eat and drink judgment to themselves by partaking of the Lord’s Supper (1 Cor. 11:29) (Mark Dever and Paul Alexander).