And thou shalt set upon the table shewbread before me alway. Shew-bread - לחם פנים lechem panim literally, bread of faces; so called, either because they were placed before the presence or face of God in the sanctuary, or because they were made square, as the Jews will have it. It is probable that they were in the form of cubes or hexaedrons, each side presenting the same appearance; and hence the Jews might suppose they were called the bread or loaves of faces: but the Hebrew text seems to intimate that they were called the bread of faces, פנים panim, because, as the Lord says, they were set לפני lephanai, before my Face. These loaves or cakes were twelve, representing, as is generally supposed, the twelve tribes of Israel. They were in two rows of six each. On the top of each row there was a golden dish with frankincense, which was burned before the Lord, as a memorial, at the end of the week, when the old loaves were removed and replaced by new ones, the priests taking the former for their domestic use.
It is more difficult to ascertain the use of these, or what they represented, than almost any other emblem in the whole Jewish economy. Many have conjectured their meaning, and I feel no disposition to increase their number by any addition of my own. The note on Exodus 25:23, from Dr. Cudworth, appears to me more rational than any thing else I have met with. The tabernacle was God's house, and in it he had his table, his bread, his wine, candlestick, etc., to show them that he had taken up his dwelling among them. See Clarke's note on Exodus 25:23.