Mass
The Sacrifice of the Mass
Passover is a Jewish holiday. Holy week is a Christian event.
passover
If you mean the sacrament of the Lord's Supper, then it was on the night Jesus was betrayed as He and the disciples celebrated the Passover feast.
Baptism, Holy Communion and Reconciliation, Confirmation
The Eucharist was first carried out in the Upper Room, or Cenacle, in Jerusalem by Jesus during Passover. Today that date is celebrated on Holy Thursday of Holy Week.
Holy Thursday, also known as Maundy Thursday, is celebrated in the Christian tradition as the day when Jesus shared the Last Supper with his disciples. It is typically marked by special church services, including the reenactment of the Last Supper and the washing of feet, symbolizing humility and service. Many Christians also participate in Holy Communion and reflect on the significance of Jesus' sacrifice.
The Black Mass was celebrated during the times of Christian Holy Days. The Back Mass was a mockery of the Christian Mass and is said to be held by a coven of witches.
the passover
In the Synoptic Gospels, the Passover feast was celebrated after sundown on the Thursday evening, as the new day (Friday) began in the Jewish calendar, and this was the occasion of the Last Supper. The crucifixion took place later the same day - the day of the Passover.In John's Gospel, Jesus' crucifixion took place on the day of preparation for the Passover, and Jesus symbolised the sacrificial lamb whose legs could not be broken.
They High Holy Days are Rosh Hashanah and Yom Kippur. They and Passover are Jewish holidays, originating in the Torah (Leviticus ch.23), on which no work is to be done (ibid). Other than that, their details are different. See also:http://judaism.answers.com/jewish-holidays/the-jewish-holidays
The Festival of Pentecost, also known as Shavuot in Jewish tradition, marks the giving of the Torah at Mount Sinai, celebrated seven weeks after Passover. In Christianity, it commemorates the descent of the Holy Spirit upon the apostles, as described in the New Testament, empowering them to spread the teachings of Jesus. This event is often considered the "birth" of the Christian Church, highlighting the importance of the Holy Spirit in guiding believers.