Catholic Mass is made up of two main parts (liturgies), liturgy of the Word (readings, homily, and general intercessions), and the liturgy of the Eucharist (presentation of the bread and wine, the consecratory thanksgiving, and communion)[1]. And in today’s gospel, Jesus our eternal high priest did it Himself. Hence our topic, Catholic Mass celebrated by Jesus Himself. Jesus is both the victim and the priest in every Mass[2].