The shewbread was type of the spiritual food which the believer feast on.  John 6:35,50; Matt. 4:4; Isa. 55:2
 
The Table of shewbread was a simple table upon which was placed the fruit and grain offerings...( bread and wine ). It was made again of acacia wood covered with gold. God's purity and holiness. It had a rim to keep the bread from falling off and being desecrated. Certain of these artifacts had utensils that went with them. The Alter, shovels and other tools, the Table, vessels and such, the Alter of Incense, utensils as well. All solid gold and speaking of the gifts from the Lord that allow us to do the work of the ministry.

The Table held the provision for the Priests, the Levites. They were chosen among the tribes, not by vote, but by God to do the work of the ministry. And even though the people gave their offerings "as unto the Lord" The Lord turned around (not needing human sustenance Himself) gave it as a provision to the priesthood. In this the Levites knew that their provision was not from man, but from the Lord. They recieved the BEST of Israel. (ONLY the best was offered to the Lord, and the Lord, in turn, only gives the best as well. And so for those priests, the bread was the bread of life, and the wine, the drink which sustained.

This is the same shewbread that King David and his men had once when they were starving. It would be thought blasphemy for them to do, But the Messiah Yeshua explained ;

 " when the Pharisees saw it, they said unto him, Behold, thy disciples do that which is not lawful to do upon the Sabbath day. But he said unto them, Have ye not read what David did, when he was an hungered, and they that were with him; How he entered into the house of God, and did eat the showbread, which was not lawful for him to eat, neither for them which were with him, but only for the priests? Or have ye not read in the law, how that on the Sabbath days the priests in the temple profane the Sabbath, and are blameless? But I say unto you, That in this place is one greater than the temple. But if ye had known what this meanest, I will have mercy, and not sacrifice, ye would not have condemned the guiltless. For the Son of man is Lord even of the Sabbath day."

Today we celebrate together this mystery with the Jewish people who gave us the Messiah. They celebrate it as Passover, the Haggida and Believers of Yeshua, Jesus, in communion. "Jesus said I am the Bread of Life" and we eat that unleavened bread to remember His broken body which bought for us the Passover of eternal death. And we drink the wine of the New Covenant in His blood, painted not on our doorposts, but applied to ourselves and this has redeemed us from our sins.

Then we look ahead, we see a large curtain, the veil, behind which is the Most Holy Place, but first, in front of the curtain, there is a smaller alter, like the one outside, but from it rises smoke, night and day.