Excerpt from the 14-page booklet by the same title
The Lord’s Supper is to be a time of "remembering the Lord," and, as such, it is a time of worship. While certain spiritual activities are appropriate at other times, they are not fitting as we gather to remember the Lord. We do not gather to hear one teach or preach the Word. Neither is it a time to evangelize the lost, although any present who may be lost may never hear a better gospel message than that declared by the redeemed in their worship. Lastly, we do not gather to perform or to be entertained.
All that is done is to focus our attention upon the Lord and to exalt Him. He is to have the preeminent place in the gathering. (Col. 1:18) If a portion of Scripture is read, it is to direct our hearts and minds towards the Person and work of Christ. Hymns and audible worship should likewise exalt the Lord.
While the men are to lead in public worship, all believers, men and women alike, are spiritual priests and should be worshipping. (1 Pet. 2:5) Each heart is to be occupied with Christ and, when this is so, much worship will ascend to the Lord.
Often man will, usually with good intentions, introduce things which detract from the purpose of such a gathering. The love feast at Corinth ultimately deteriorated into a drunken party. On the mount of transfiguration, Peter’s idea to build three tabernacles may have seemed to be honorable, but the Father saw it as placing others on the same ground as His Son. After the Father’s intervention, they saw "no man, but Jesus only." This too should be our desire as we gather to remember Him.