Gold

is the symbol of divine righteousness. Hence everything in the tabernacle was covered with this, as nothing else would do for the eye of God (with the sole exception of the beautiful veil, the symbol of the perfect life of Christ). It is in this aspect that it is spoken of in Rev. 3:1818I counsel thee to buy of me gold tried in the fire, that thou mayest be rich; and white raiment, that thou mayest be clothed, and that the shame of thy nakedness do not appear; and anoint thine eyes with eyesalve, that thou mayest see. (Revelation 3:18), the white raiment there, and also in 19:8, being the practical righteousness of saints.