Shoulder of the servants

Numbers 7:1-86
Kohathites were to carry on their shoulder so Moses did not give any of the carts and oxen to them.
Tribe of Judah was the first on to bring offering on the first day for the dedication of the altar. The twelfth tribe is Naphtali.
Total twelve days, each tribe bring same offering to the altar. It includes silver plate, silver wrinkling bowl, filled with finest flout mixed with olive oil as grain offering. One gold dish filled with incense, one ram and one male lamb, two oxen, five rams, five male goats and five male lambs a year old.
Why?
The articles in Holy Place have to be carried by shoulder of man.
The first born son has the highest family position, he is the leader in his house. Jesus is the first fruit in the history of humans resurrection.  Jesus Christ is the corner stone of the Church.
Do we have the should to bear the mission which God commanded us? To honor His name and to be a good witness in our life. This is a mission of our whole life since I know the Lord.
How?
Do not afraid the trouble or burden for the Lord is working with me, I have carry those burden by my shoulder. When I working with the Lord, this burden is light.