One way to use the mass for evangelization would be in discussion to see -
the use of Scripture in the Mass, not only in the readings but as the basis for the prayers and pretty much everything else
the way the Mass, the different parts of the service, the Eucharist, the role of the ministerial priest, the presence of Jesus in the Mass etc, relates not only to Scripture but to the teachings of the church from the 1st to the 21st centuries, and what they mean to our lives not just as theories but in terms of our relationship with God and with each other
the basic beliefs of the Church in the creed
how we can relate to the conception, birth, life, suffering, death, resurrection, ascension and future coming in glory of our Saviour all of which are referred to in the Mass
the wonderful Sacrament that Jesus left us and how that relates to Scripture, to the teaching of the Church through history and to our own lives today individually and as the communion/family of the Church.
the way the Mass shows the depths of God’s love for us and the depths of his call for our lives
and many other things too - but I’m limited in time to think of them.
The Mass was not devised as a tool for evangelisation so we can expect other things to be better tools for that purpose. However, a study of the mysteries of the Mass superbly illustrates our faith, God’s movement in our lives and in history, and our response to God.
As someone I know says, “you could study the Mass for a lifetime and not get to the end of it”. When I first heard him say that I didn’t believe it and thought it nonsense. But over the last couple of years (it’s only 2 years since I started to attend Mass after 14 years in other churches) I have started to understand the truth of what he says.
It is very sad if you never heard as a Catholic about entering into a relationship with Jesus. The whole of Catholic life should be about a relationship with Jesus, loving service to Jesus and about bringing, through our lives, Jesus and indeed the Trinity to the world. (‘bringing’ might not be the best word there, sorry). Indeed, what is the Mass if it does not include a relationship with Jesus in a most intimate way?
It is also very sad if you didn’t hear that Jesus was the Saviour. He is the Saviour, the Way, the Truth, the Life. That’s Catholic teaching. Unfortunately there are Catholic churches around the place where such teaching has been lacking. Hopefully teaching, catechetics will continue to improve as the years progress. On behalf of the Catholic Church I apologise for the lack of teaching you received. It is probably not really my place to do that but I’ll do it anyway!
I too am a slave. I am in good company there. Paul was a slave too, a slave, or bond-servant, to Christ. But I am also free because Christ has set me free.
Anyway, my God bless you Only Scripture on your journey into Christ. That’s an interesting name you’ve chosen for yourself. What exactly do you mean by it, and can you justify what you mean using only Scripture to do so?