Here is the link to this week’s article: https://bookofconcord.org/augsburg-confession/of-the-mass/
This article speaks to the church’s worship. While the Roman church had erred in many ways, there was nothing intrinsically wrong with the traditional order of service.
The early Lutherans were careful to preserve the traditional Mass, reforming only what was necessary. Perhaps the biggest change was that they began singing hymns in the vernacular. Luther and his colleagues wrote hymns in German, publishing the first hymnal in 1524. Over time, the Lutheran church would become renowned for its music. Lutheran composers, such as Michael Praetorius and J.S. Bach would have a major impact on the development of western musical forms.
The other major issue dealt with in this article is abuses of the Mass. At the time of the reformation, it was common for priests to say Mass for a fee: it was thought that just by celebrating Mass, the priest could vicariously remove sins. Further, although Mass was said daily, most laypersons received communion infrequently, if at all.
Because of the abuses associated with daily Communion, the Lutheran reformers returned to an earlier practice of having Holy Communion only on holy days (Sundays and Festival days), or it could be served on request (for example, when an individual is unable to attend the Sunday service). This is probably similar to the practice of the early church.
Much later (probably in the 19th century), many Lutherans moved from weekly to monthly or even quarterly communion. There were a number of reasons for this. Many congregations in North America lacked ordained pastors, so they only celebrated communion when a pastor could visit. Among pietistic Lutherans, there was a strong emphasis on receiving worthily; many feared receiving the Lord’s Supper without a period of personal preparation. Additionally, Lutherans have been influenced by other Protestant groups who place less emphasis on the Lord’s Supper.
At this point, monthly communion is a long-standing tradition, but perhaps it is worth re-examining our reasons.
If you’re interested in studying this issue further, here’s a helpful primer (and the source of some info in this post): https://steadfastlutherans.org/blog/2015/01/communion-every-sunday-surprise-surprise/#:~:text=But%20suddenly%2C%20in%20the%2019th,only%20four%20times%20a%20year.