Exodus 28:14
And two chains of pure gold at the ends; of wreathen work shalt thou make them, and fasten the wreathen chains to the ouches. And two chains of pure gold at the ends; of wreathen work shalt thou make them, and fasten the wreathen chains to the ouches.
This verse belongs to God's special, detailed directions to Moses about everything connected with His service, specifying the dress Aaron and the priests must wear when ministering before Him in the tabernacle, in the holy place, and in the priest's office. It requires a particular style of garment suited to the priests' work, with its two wreathen chains of pure gold forming part of the breastplate's attachment to the ouches. The teaching drawn from these directions about reverence for dress does not explain the gold chains themselves.
The specificity of the directions shows God has a preference concerning the dress of those who serve Him, requiring order in everything and especially cleanliness. The apparel of those who officiate before God, who moves the world and sustains life and health, can honor or dishonor Him. The directions served to show reverence for God and to impress upon the people that God is holy and His service is sacred. Aaron's clothing was symbolic, and likewise the dress of Christ's followers should be symbolic, representing Him in all things. The breastplate attachment points to a heavenly scene in which Jesus, wearing precious priestly garments including a breastplate marked with names, enters the second apartment of the heavenly sanctuary in 1844.