Hey, buddy. Let’s talk about your ignorance of language for a minute.
“Divine Service” is the Anglicization of the German Gottesdienst, which quite literally means “God’s Service.” It’s what German Christians have called the “Mass” for as long as they’ve been speaking German. It is a more correct and respectful name for the synonymous event known by the colloquialism “Mass,” which actually has its origins in the Latin dismissal “Ite, missa est.” or "Go, y’all are dismissed."
To put it simply, the word “Mass” began as the crude commonspeak way of saying “Let’s get out of here and get some breakfast because that priest took forever and I’m not staying for the last hymn.”
Now let’s talk about your ignorance of Lutheranism for a minute.
Many Lutherans still call the Divine Service “Mass,” especially in Europe. That’s for good reason because “Mass” is the word used by the Lutheran Reformers to describe what Lutherans take part in on Sunday mornings. In fact, the celebration of the Mass --that is, the receiving of Christ’s Body and Blood together with all the church militant and triumphant as Heaven opens and Christ and Calvary and Infinity converge at the altar rail-- is the pinnacle of Lutheran worship. The Lutheran Confessions mention “Mass” repeatedly. There’s even an entire Article of Lutheran belief which demands defense of the Mass:
“At the outset we must again make the preliminary statement that we do not abolish the Mass, but religiously maintain and defend it. For among us masses are celebrated every Lord’s Day and on the other festivals, in which the Sacrament is offered to those who wish to use it, after they have been examined and absolved. And the usual public ceremonies are observed, the series of lessons, of prayers, vestments, and other like things.”
The Lutherans had to repeat this point because some Roman Catholics had decried the Lutheran Mass as ‘fake’ because the Lutherans had begun celebrating it in German, the language of the people, rather than Latin. Roman Catholics were also upset because Lutherans only held public Masses, not private ones that could be done for money.
Now lets talk about legitimate Roman Catholic objections to the Lutheran Divine Service.
Lutherans do not believe they can possibly add “my sacrifice and yours” to Christ’s once-and-for-all Sacrifice, while Roman Catholics do. Also, Roman Catholics claim that Lutherans don’t have real priestly orders; Lutherans obviously beg to differ. Catholics should obviously believe their communion’s teachings in this regard. But they should not expect others Christians to follow suit, as riding the High Horse of Triumphalism will just get them laughed at.