Overlay it with pure gold - Words descriptive of the common process of gilding. The Egyptians in early times were acquainted with both the art of gilding and that of covering a substance with thin plates of gold.

A crown of gold - That is, an edging or moulding of gold round the top of the ark, within which the cover or mercy-seat Exodus 25:17 may have fitted (compare Exodus 38:2). There were golden mouldings, called by the same name, to the table of showbread Exodus 25:24; Exodus 37:11-12, and to the golden altar Exodus 30:3; Exodus 37:26.

A crown of gold round about - A border, or, as the Septuagint have it, κυματια χρυσα στεπτα κυκλω, waves of gold wreathed round about.

And thou shalt overlay it with pure gold,.... Not gild it, but put a plate of pure gold over it:

within and without shalt thou overlay it; so that nothing of the wood could be seen: this may denote the glory of Christ in both his natures, divine and human, the riches of his person and office, which are unsearchable and durable, and his preciousness to them that believe, Sol 5:10,

and shalt make upon it a crown of gold round about: or a cornish of pure gold upon it, every way, which was a square on which the mercy seat was set; which may point at the honour and glory of Christ, especially in his kingly office, who has indeed on his head many crowns; one a crown of pure gold, his divine Father has set upon him; another which the church has crowned him with, and indeed both angels and saints cast their crowns at his feet, and set the crown on his head, or give him the glory of all they have and are.

And thou shalt overlay it with pure gold, within and without shalt thou overlay it, and shalt make upon it a crown of gold round about.

11. a crown-a rim or cornice.

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.