Though there are close connections with the celebration of Passover, what Christ instituted the night before His crucifixion is a new ordinance altogether. The Passover pointed forward to the death of the Lamb of God. It also commemorated the death angel “passing over” the homes of those who had put lamb’s blood on their doorposts. While the Lord’s Supper points back to the death of Christ, keeping it fresh in our minds, it also points forward to His Second Coming. JTL26 7.1
The menu for both the Passover and the Lord’s Supper is the same—unleavened bread and unfermented grape (or raisin) juice. At both services, a blessing was pronounced over the bread and juice. By drinking the cup and eating the bread, believers become partakers of the very life of Christ. JTL26 7.2