The Catechism in Questions & Answers

497. Is Holy Communion attested anywhere else in the New Testament?

Yes, there is another reference to Holy Communion in 1 Corinthians 11: 23- 26: “...the Lord Jesus on the same night in which He was betrayed took bread; and when He had given thanks, He broke it and said, ‘Take, eat; this is My body which is broken for you; do this in remembrance of Me. In the same manner He also took the cup after supper, saying, ‘This cup is the new covenant in My blood. This do, as often as you drink it, in remembrance of Me.’ For as often as you eat this bread and drink this cup, you proclaim the Lord’s death till He comes.”
These words are the basis for the text that is spoken during the consecration of Holy Communion.

‘Consecration’ is the act of lifting the bread and wine out of the domain of the earthly. It is associated with dedication and sanctification (see explanation of “Consecration” following Question 503).