Ark of the Covenant

It appears to have been an oblong chest of shittim (acacia) wood, 2 1/2 cubits long by 1 1/2 broad and deep. Within and without gold was overlaid on the wood, and on the upper side or lid, which was edged round about with gold, the mercy-seat was placed. The ark was fitted with rings, one at each of the four corners, and through these were passed staves of the same wood similarly overlaid, by which it was carried by the Kohathites. (Numbers 7:9; 10:21) The ends of the staves were visible without the veil in the holy place of the temple of Solomon. (1 Kings 8:8) The ark, when transported, was enveloped in the "veil" of the dismantled tabernacle, in the curtain of badgers' skins and in a blue cloth over all, and was therefore not seen. (Numbers 4:5,20) II. Its purpose was to contain inviolate the divine autograph of the two tables, that "covenant" from which it derived its title. It was also probably a reliquary for the pot of manna and the rod of Aaron, and you can find more about that here on st-takla.org on other commentaries and dictionary entries.III.