25:10 The ark was a chest or coffer, in which the two tables of the law, written with the finger of God, were to be deposited. If the Jewish cubit was, as some learned men compute three inches longer than our half - yard, (twenty one inches in all) this chest or cabinet was about fifty - two inches long, thirty - one broad and thirty one deep; it was overlaid within and without with thin plates of gold; it had a crown, or cornish of gold round it; rings and staves to carry it with; and in it he must put the testimony. The tables of the law are called the testimony, because God did in them testify his will; his giving them that law was in token of his favour to them, and their acceptance of it was in token of their subjection to him. This law was a testimony to them to direct them in their duty, and would be a testimony against them if they transgressed. The ark is called the ark of the testimony, Exo 30:6, and the tabernacle, the tabernacle of the testimony, Num 10:11. The tables of the law were carefully preserved in the ark, to teach us to make much of the word of God, and to hide it in our inmost thoughts, as the ark was placed in the holy of holies. It intimates likewise the care which divine providence ever did, and ever will take to preserve the records of divine revelation in the church, so that even in the latter days there shall be seen in his temple the ark of his testament. See Rev 11:19.
25:10-22 The ark was a chest, overlaid with gold, in which the two tables of the law were to be kept. These tables are called the testimony; God in them testified his will. This law was a testimony to the Israelites, to direct them in their duty, and would be a testimony against them, if they transgressed. This ark was placed in the holy of holies; the blood of the sacrifices was sprinkled, and the incense burned, before it, by the high priest; and above it appeared the visible glory, which was the symbol of the Divine presence. This was a type of Christ in his sinless nature, which saw no corruption, in personal union with his Divine nature, atoning for our sins against it, by his death. The cherubim of gold looked one towards another, and both looked downward toward the ark. It denotes the angels' attendance on the Redeemer, their readiness to do his will, their presence in the assemblies of saints, and their desire to look into the mysteries of the gospel. It was covered with a covering of gold, called the mercy-seat. God is said to dwell, or sit between the cherubim, on the mercy-seat. There he would give his law, and hear supplicants, as a prince on his throne.