“The cup of blessing which we bless, is it not the communion of the blood of Christ?
The bread which we break, is it not the communion of the body of Christ?
For we being many are one bread, and one body: for we are all partakers of that one bread.”
1 Corinthians 10:16-17 KJV
jesus-works.com 
Jesus said,” do this in memory of me”.I can’t recall the chapter in the bible but I have read it several times in the past.
Luke 22:19 Lord Jesus prayed, took the bread and break it in piece and said this is my body that is given to you.Do this in remembrance of me.
Thank you so much @edochie99 for including Luke 22:19