The writers of the New Testament were Hebrews and Jews. They lived and wrote as Hebrews and Jews, even when they wrote in the koine Greek of the day. The things said and done by Yeshua (who was also a Hebrew and Jew) and His talmidim/disciples have a flavor that comes from their culture and their scriptures.
An Orthodox Messianic Rabbi spoke at Max Lucado’s assembly about communion. He explained some of the deeper meanings that we miss due to unfamiliarity with the Jewish culture, customs and scriptures. This is a very enlightening and sobering understanding of just what is taking place during communion. It also sheds light on what Shaul/Paul wrote (emphasis is mine):
For what I received from the Lord is just what I passed on to you — that the Lord Yeshua, on the night he was betrayed, took bread; and after he had made the b’rakhah he broke it and said, “This is my body, which is for you. Do this as a memorial to me”; likewise also the cup after the meal, saying, “This cup is the New Covenant effected by my blood; do this, as often as you drink it, as a memorial to me.” For as often as you eat this bread and drink the cup, you proclaim the death of the Lord, until he comes. Therefore, whoever eats the Lord’s bread or drinks the Lord’s cup in an unworthy manner will be guilty of desecrating the body and blood of the Lord! So let a person examine himself first, and then he may eat of the bread and drink from the cup; for a person who eats and drinks without recognizing the body eats and drinks judgment upon himself. This is why many among you are weak and sick, and some have died! If we would examine ourselves, we would not come under judgment. But when we are judged by the Lord, we are being disciplined, so that we will not be condemned along with the world. (1Co 11:23-32 CJB) (Note: b’rakhah means blessing.)
I hope this video blessed you as it did us. What a joy to understand better what our Messiah taught and what His talmidim wrote!