The Lord is my shepherd I shall not want or lack anything. The Lord is often called the shepherd of his people In the Old Testament kings were consider to be the shepherd because he was king over the people. Since Jehovah was the true king of the Jews as well as the Gentiles than the title of shepherd was appropriate for Him.
This book set forth the Messiah as Isreal’s great high priest. He was the one who led their worship, confession, this mean thty tell him what happen to them, This is a formal statement confessing to a crime or a religious doctrine.