29 And thou shalt make the dishes thereof, and spoons thereof, and covers thereof, and bowls thereof, to cover withal: of pure gold shalt thou make them.
30 And thou shalt set upon the table shewbread before me alway.
As with the Ark of the Covenant, after hearing the dimensions and materials of the table, we are then given its purpose, which is to hold the shewbred and all of the dishes related to it. We do not hear much of the shewbread in these verses, but the full details of how it was used is given in Leviticus 34:5-9:
And thou shalt take fine flour, and bake twelve cakes thereof: two tenth deals shall be in one cake. And thou shalt set them in two rows, six on a row, upon the pure table before the Lord. And thou shalt put pure frankincense upon each row, that it may be on the bread for a memorial, even an offering made by fire unto the Lord.
Every sabbath he shall set it in order before the Lord continually, being taken from the children of Israel by an everlasting covenant. And it shall be Aaron’s and his sons’; and they shall eat it in the holy place: for it is most holy unto him of the offerings of the Lord made by fire by a perpetual statute.
The twelve loaves of bread is clearly a symbol of the twelve tribes of Israel, each of which would have access to the rites and rituals of the tabernacle, which was where the table of shewbread was kept. The shewbread was also made without leaven, calling to mind the haste with which Israel departed Egypt, and also symbolizes a state of purity and incorruption. The bread would be accented with frankincense, which was a sweet-smelling resin, sometimes burned as incense. Every sabbath the bread would be replaced with fresh loaves, and all of it was to be consumed by the priests, part of their nourishment by the hand of providence.
There are many overlapping symbols and images in all of this. The bread is the Israelite people. They are to remain unleavened, meaning uncorrupted by foreign philosophies and idolatry. They are to be refreshed regularly, upon every sabbath day. They are also to provide for the priests nourishment, so that the priests can provide for their spiritual refreshing. Also, they are to bring up a sweet fragrance to the Lord, which is the doing of good works and the words of sincere prayer. Finally, they are to rest upon a solid foundation, symbolized by the table, which is the ethical and moral bedrock defined by the commandments of Almighty God.
From these symbols we see the basis, the practice, and the outcome of living the Hebrew gospel. It is an amazing wealth of symbolism contained within a simple, repetitive practice.