do this in rememberance

And when the hour had come, He (Jesus) reclined at the table and the apostles with Him.

And He said to them, "I have earnestly desired to eat this Passover with you before I suffer;
for I say to you, I shall never again eat it until it is fulfilled in the kingdom of God."

And when He had taken a cup and given thanks, He said, "Take this and share it among yourselves; for I say to you, I will not drink of the fruit of the vine from now on until the kingdom of God comes."

And when He had taken some bread and given thanks, He broke it and gave it to them, saying, "This is My body which is given for you; do this in remembrance of Me."

And in the same way he took the cup after they had eaten saying, "This cup which is poured out for you is the new covenant in My blood."

Thursday is the night when our Lord Jesus celebrated the Lord's Supper with His disciples before His death on the cross on Friday morning. He asked that we "do this in remembrance of Him."

We celebrate the Lord's Supper so that we will always remember what He did for us.