Some background for those of you unfamiliar with how communion works in your typical baptist church (whether or not they belong to a denomination). For us, the ordinance (the fancy word we use when we need to use a fancy word) of communnion is not a question of transubstantiation or consubstantiation. In other words, it isn't a question of whether or not the bread and wine are tranformed into the body and blood of Christ, however one chooses to describe it (that was the heart of the argument that led to the Reformation, and eventually people killed and were killed over the issue during the Thirty Years War. {See: What Every Christian Should Know About: Church History, part 3 at the bottom of the page} For a quick primer on the various Christian views of communion: Transubstantiation, Consubstantiation, or Something Else? Roman Catholic vs. Protestant Views of the Lord’s Supper - Zondervan Academic blog.
Most baptists would agree with Huldrych Zwingli that communion is a memorial, with some leaning toward the view of John Calvin that the ordinance does invoke the spiritual presence of Jesus, albiet in a way significantly short of that embraced by the Orthodox, Catholics, Anglicans, and Lutherans. That being said, as an American Baptist minister, when I preside over communion (which we do once a month, typically on the 1st Sunday unless I'm not here, then it gets bumped to the 2nd) I normally say, "We here at 1st Baptist celebrate open communion, by that we mean that if you are a follower of Jesus Christ, you are free to join us if you choose." Those words don't come from a book, or denominational HQ (that's not how things work when you're a 'low liturgy' baptist, each church/pastor decides many such for him/herself), they simply reflect what we believe, and when I remember to say them, they're an invitation to any visitors or relatively new people. Morever, after I say the prayer (again, extemporaneously given) it has been my habit (learned from the independent baptist pastor, James Frank, who led my family church for 40 years) to simply close my eyes, bow my head, and spend the time until everyone is ready receiving the element(s) to pray. The end result? I don't know who is participating in any given week. I don't know if a particular individual in my church skips communion on occasion, or regularly. My thoughts on this matter mirror my thoughts about the offering. When the plate is being passed (in the COVID era we just left it in the back, and that seems likely to continue) I don't look to see if anyone is putting something in or not. The point with both is that the decision to participate (or give) is between that person and God.
As baptists we believe in the doctrine of the Priesthood of All Believers. Long story short, my role as pastor doesn't set me apart from the congregation, we all partake of the same Holy Spirit, we all are held to the same standards of conduct and service. Using Paul's analogy of the body of Christ, we are all a necessary part. This has numerous implications, one of which is the elevation of one's own responsibility before God (not to the level that it negates collective church discipline when necessary), particularly in matters of conscience.
Which brings us back around to communion. Paul, writing to the church at Corinth about the Lord's Supper said this,
1 Corinthians 11:26-32 New International Version
26 For whenever you eat this bread and drink this cup, you proclaim the Lord’s death until he comes.
27 So then, whoever eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of sinning against the body and blood of the Lord. 28 Everyone ought to examine themselves before they eat of the bread and drink from the cup. 29 For those who eat and drink without discerning the body of Christ eat and drink judgment on themselves. 30 That is why many among you are weak and sick, and a number of you have fallen asleep. 31 But if we were more discerning with regard to ourselves, we would not come under such judgment. 32 Nevertheless, when we are judged in this way by the Lord, we are being disciplined so that we will not be finally condemned with the world.
The key phrases here are: "in an unworthy manner" (vs. 27), and "Everyone ought to examine themselves" (vs. 28). Given these instructions, it seems to us (as baptists) that it isn't up to a church officer (be he/she a deacon, pastor, bishop, or any other title) to decide who is, or is not, worthy of participating in the Lord's Supper. Those who do so 'in an unworthy manner', perhaps by doing so with irreverance or with unconfessed sin between him/her and God, will be judged by God himself, not by me.
Lastly, Rev. Daniel and I probably disagree about a lot of things theologically speaking, but I certainly echo his final statement above, "What if somebody 'unworthy' receives it?" "Uh, that would be everybody." Our approach to the table is always an act of grace for known but Christ is worthy, our acceptance of the bread (body) and cup (blood) is always an act of grace for our sins doom us otherwise, no matter what we undertand the bread and wine to be. At any given church service, at any kind of church, there are those who ought to abstain from participation until they confess their sins and repent, and there are those who are just going through the motions due to either unbelief or complacency. In the end, seperating the 'sheep from goats' isn't my job, thanks be to God for that.