The Church calls Jesus' assuming a human nature the Incarnation - becoming flesh. John 1: 14 tells us, "The Word became flesh and lived among us. Jesus "took the form of a servant, being born in the likeness of men" (Phil 2:7). "A body have you prepared for me... then I said, ‘Lo, I have come to do your will, O God'" (Heb 10:5-7).
Taken From The Compendium - Catechism Of The Catholic ChurchRead More
At the Last Supper with his apostles on the eve of his passion Jesus anticipated, that is, both symbolized his free self-offering and made it really present: “This is my Body which is given for you” (Luke 22:19), “This is my Blood which is poured out...” (Matthew 26:28) Thus he both instituted the Eucharist as the “memorial” (1 Corinthians 11:25) of his sacrifice and instituted his apostles as priests of the new covenant. Please click here to learn more about Holy Mass, also known as the celebration of the Holy Eucharist.