what does the bible say?
Churches use the terms open and closed Communion to describe who may participate in the Lord’s Supper. In open Communion, all believers who profess faith in Christ are invited to partake. In closed Communion, participation is limited to members of that specific local church.
The Bible teaches that church leaders are responsible for shepherding those under their care (Hebrews 13:17; Acts 20:28). Membership is the means by which congregations identify who exhibits the true fruit of being a believer, and this belongs to that local body and falls under its spiritual oversight. Because pastors can only confidently protect those who are clearly part of their flock, some churches restrict Communion to members as a way to protect both the church and those participating in it.
The Bible’s instructions about Communion are simple. Participants must be genuine believers and must not take the Lord’s Supper in an unworthy manner—that is, while harboring unrepentant sin or causing division within the body (1 Corinthians 11:27–29).
Therefore, whether a church practices open or closed Communion depends on how it believes those requirements are best upheld. Both approaches aim to preserve the holiness of the table, encourage self-examination, and ensure that the Lord’s Supper is observed in a manner that honors Christ and strengthens His people.