Matthew 26:26-28
New International Version
26 While they were eating, Jesus took bread, and when he had given thanks, he broke it and gave it to his disciples, saying, “Take and eat; this is my body.” 27 Then he took a cup, and when he had given thanks, he gave it to them, saying, “Drink from it, all of you. 28 This is my blood of the[a] covenant, which is poured out for many for the forgiveness of sins.
Mark 14:22 While they were eating, he took bread, said the blessing, broke it, and gave it to them, and said, “Take it; this is my body.” 23 Then he took a cup, gave thanks, and gave it to them, and they all drank from it. 24 He said to them, “This is my blood of the covenant, which will be shed for many.
Luke 22:14-23
New American Bible (Revised Edition)
14 When the hour came, he took his place at table with the apostles. 15 He said to them, “I have eagerly desired to eat this Passover with you before I suffer, 16 for, I tell you, I shall not eat it [again] until there is fulfillment in the kingdom of God.” 17 Then he took a cup, gave thanks, and said, “Take this and share it among yourselves; 18 for I tell you [that] from this time on I shall not drink of the fruit of the vine until the kingdom of God comes.” 19 Then he took the bread, said the blessing, broke it, and gave it to them, saying, “This is my body, which will be given for you; do this in memory of me.” 20 And likewise the cup after they had eaten, saying, “This cup is the new covenant in my blood, which will be shed for you.
1 Corinthians 11:23-25
New American Bible (Revised Edition)
23 For I received from the Lord what I also handed on to you, that the Lord Jesus, on the night he was handed over, took bread, 24 and, after he had given thanks, broke it and said, “This is my body that is for you. Do this in remembrance of me.” 25 In the same way also the cup, after supper, saying, “This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me.”
From these passages we learn:
Jesus instituted this Supper for believers to eat and drink often.
Jesus gives those who commune His body and blood in, with and under the bread and wine.
Jesus gives the very price of redemption, his body and blood, so the recipient receives the victories He won-- forgiveness of sins and heaven.
Jesus invites to to do this often to remember what He did for us. This helps us to value His sacrifice and benefits. It encourages us to know Christ is with us in our Christian life.