ISB ~ Matthew 26 v2

the Passover:One of the great feasts of the Jewish calendar. It commemorates God’s deliverance of Israel from Egypt (Ex 12) and is celebrated on the 15th of Nisan (or Abib), the first month of the OT liturgical year (March/April). With Weeks (Pentecost) and Booths (Tabernacles), it is one of three feasts that required Israelites to travel to Jerusalem (Ex 23:14; Lev 23:4-8; Deut 16:16). By NT times, the Passover was celebrated in conjunction with the feast of Unleavened Bread (26:17).