The jeweled arrangement on the breastplate in Exodus 28, arranged in marching order, symbolizes differences in gifts and responsibilities of the tribes.
The primary function of a priest is to assist people in accessing God so that there can be unity with God. A priest is a bridge-builder between man and God.
In Numbers 16-18, God performed several miracles to demonstrate conclusively that not everyone is called to the same function and that He remains the Boss.
Jesus' triumphal entry into Jerusalem fulfilled prophecies. The crowds welcoming Jesus were actually choosing the Paschal Lamb of God on Abib/Nisan 10.
We tend to forget how different holy days offerings were under the Old Covenant. However, the important part of giving offerings remains the same.