Originally published at: https://bookofconcord.org/small-catechism/questions-and-answers/sc-qa-0012/
12 12. What are the Words of Institution?
Our Lord Jesus Christ, on the night when He was betrayed, took bread and when He had given thanks, He broke it and gave it to the disciples and said: “Take eat; this is My body, which is given for you. This do in remembrance of Me.” In the same way also He took the cup after supper, and when He had given thanks, He gave it to them, saying: “Drink of it, all of you; this cup is the new testament in My blood, which is shed for you for the forgiveness of sins. This do, as often as you drink it, in remembrance of Me.”