Eucharist as Sacrafice - The Sacrafice of Christ and the Church

My work named Eucharist as sacrifice - The sacrifice of Christ and the Church. I wanted to talk about every kinds of sacrifice but promarily from the view of Roman Catholic Church. The work should show also the conflikt between Roman Catholic Church and Protestant Churches in the task of Eucharist sacrifice. I started with sacrifice in Old and New Testament. It should show the difference between ritual sacrifice in Old Testament and Christ fait accompli in New Testament. Then is very interesting chapter where is shown the Trinity sacrifice. It show, that not only Christ but also God Fater and Holy Spirit were the sacrifice on cross. The third chapter spoke about Christ, human and Church sacrifice. Every inother way but are linked. Also the celebration in Roman Catholic Church has the sacrifice sense. The last chapter spoke about the differences in sacrafice (promarily in Eucharist celebration) in the Church between Roman Catholic Church and Protestant Churches. After historical kontext of some sacrifical and celebration disagreement between Churches is shown the biggest and still alive dispute. This dispute is in the priest in Church. Roman Catholic Church doesn ́t agree with doctrine of Protestant Churches and conversly. This is the main point why christians couldn ́t celebrate Eucharist sacrafice together..