What a shame that the only part I remember from pre-Vatican II is the mea culpa, mea culpa, mea maxima culpa, ora pro me ad dominum deum nostrum part. I still think they have a better chance of getting people to confession if they keep it in the native language.
It’s part of the Extraordinary usage. Father is encouraging us to start learning the responsorial parts because we’re going Tridentine as soon as we’re permitted without expressed permission of the Archbishop. The Act of Contrition, which one says during confession, goes as follows:
Deus meus, ex toto corde poenitet me omnium meorum peccatorum, eaque detestor, quia peccando, non solum poenas a Te iuste statutas promeritus sum, sed praesertim quia offendi Te, summum bonum, ac dignum qui super omnia diligaris. Ideo firmiter propono, adiuvante gratia Tua, de cetero me non peccaturum peccandique occasiones proximas fugiturum. Amen.
O My God, I am heartily sorry for having offended Thee and I detest all my sins because of Thy just punishments, but most of all because they offend Thee, my God, who art all good and deserving of all my love. I firmly resolve, with the help of Thy grace, to sin no more and avoid the near occasions of sin. Amen.
Which really doesn’t make sense since Father was talking about a fellow wanting to say this during confession, so maybe there is a gap in my understanding of how to do confession, since I’ve only done it in the vernacular, “Bless me Father, for I have sinned, it has been three months since my last confession.”