1) Jesus celebrated the Last Supper with his disciples on the night before his crucifixion during the Jewish Passover festival.
2) During the meal, Jesus instituted the Lord's Supper by having his disciples share bread and wine, which represented his body and blood that would be sacrificed.
3) With this act, Jesus established the new covenant of the Lord's Supper to replace the old covenant of the Jewish Passover, which commemorated deliverance from Egypt. The Lord's Supper now celebrates deliverance from sin through Jesus' sacrifice on the cross.