Q. Do you not then hold all participatory assemblies as per 1 Cor 14:26 as many do today?
A. This verse probably comes across better in YLT . . .
1Co 14:26a What then is it, brethren? whenever ye may come together, each of you hath a psalm, hath a teaching, hath a tongue, hath a revelation, hath an interpretation? (YLT)
This is put forth as a rebuking question, there were too many men attempting to take a leading role in worship, instead of edification, there was confusion.
1Co 14:26b let all things be for building up; (YLT)
All things are to be done for building up others, not puffing yourselves up with pride (v 4), here are some rules . . .
1Co 14:27 If any man speaketh in a tongue, let it be by two, or at the most three, and that in turn; and let one interpret:
If any man is going to speak in tongues, make sure it is at the most only 2 or 3, one after another, not all at once, and let someone interpret after each turn.
1Co 14:28 but if there be no interpreter, let him keep silence in the church (an assembly; YLT); and let him speak to himself, and to God.
And if there is no interpreter, keep silent in the assembly, if he wishes to exercise this gift, let him speak to himself and God at another time and place, tongues are not for self glorification, but for the propagation of the gospel (Acts 2:1-11).
1Co 14:29 And let the prophets speak by two or three, and let the others discern.
And there are rules for those that speak by prophecy also, only 2 or 3 of them like wise (yet the inspired Paul leaves off “the most” here and that should be noted for the next verse extends that number even more), and let others discern if this is the truth of God based upon the knowledge you already have (1 John 4:1) which is based upon God’s word (Acts 17:11).
1Jo 4:1 Beloved, every spirit believe not, but prove the spirits, if of God they are, because many false prophets have gone forth to the world;
Act 17:11 Now these were more noble than those in Thessalonica, in that they received the word with all readiness of the mind, examining the Scriptures daily, whether these things were so.
Or this could refer to the miraculous gift of discerning of spirits (1 Cor 12:8) . . .
1Co 12:10 and to another workings of miracles; and to another prophecy; and to another discernings of spirits; to another divers kinds of tongues; and to another the interpretation of tongues:
1Co 14:30 But if a revelation be made to another sitting by, let the first keep silence.
And if something is revealed by God to a prophet at the time someone is already speaking, don’t just blurt it out, have the speaker stop speaking, and then bring forth the new revelation.
1Co 14:31 For ye all can prophesy one by one, that all may learn, and all may be exhorted;
And the prophets are to speak one at a time, in order that all can learn and be comforted by God’s word (Rom 15:4).
1Co 14:32 and the spirits of the prophets are subject to the prophets;
Don’t say that you can’t control the working of the Spirit; it’s not like demon possession, If that were the case you might have a viable excuse, but that is not the case, These things are in your control, and what you do reflects on God, Christ and His church.
1Co 14:33a for God is not a God of confusion, but of peace.
God is “very” orderly, just look at creation, therefore be likened unto Him (Eph 4:23-24; Col 3:10).
Therefore this passage is teaching that the common assembly was to be orderly, and limited in who did what, not that one person could not do all the speaking (Acts 20:7-11), but that others could also within certain limitations, in the age of miracles and today.