Exodus 39:21

And they did bind the breastplate by his rings unto the rings of the ephod with a lace of blue, that it might be above the curious girdle of the ephod, and that the breastplate might not be loosed from the ephod; as the Lord commanded Moses.

Exodus 39:21 (KJV)

Context

This verse appears near the end of Exodus, as the Israelites finish building the tabernacle in the wilderness. God had rescued them from slavery in Egypt and was teaching them how to worship Him. The tabernacle was a portable sanctuary, and the high priest served there in special garments. This verse describes one detail of those garments: how the breastplate was fastened to the ephod.

Meaning

The breastplate was a woven pouch or panel worn on the high priest’s chest. It held the Urim and Thummim, objects used to seek God’s will, and it carried twelve precious stones engraved with the names of Israel’s tribes (Exodus 28:15-21). The ephod was a sleeveless outer garment worn over the priestly tunic, with shoulder pieces bearing two onyx stones also engraved with the tribal names (Exodus 28:9-12).

The binding described here used gold rings on the breastplate and rings on the ephod, connected by a lace of blue. This kept the breastplate fixed above the ephod’s woven band, or girdle, so that it would not slip or come loose during the priest’s duties. The blue cord may suggest heaven or divine revelation, though the text does not explain its color. The main point is that the work was done exactly as the Lord commanded Moses.

Biblical connections

The careful joining of the breastplate to the ephod shows that every part of the high priest’s ministry mattered to God. The high priest represented the people before God and carried their names near his heart. This role finds its fulfillment in Jesus Christ, who is our great High Priest and who intercedes for us (Hebrews 4:14-16). Just as the breastplate was securely bound so it would not be loosed, believers are held secure in Christ, who keeps them united to God.

Application

The verse stresses obedience: the workers did all this “as the LORD commanded Moses.” They did not change the design or follow their own preferences. This teaches that God’s instructions for worship and for life are to be followed faithfully. Obedience is not mere rule-keeping; it is a way of honoring God and trusting His wisdom.

The binding also pictures unity and connection. The breastplate and ephod were separate pieces, yet they were joined into one garment. In the same way, Christians are called to be united in love, serving one another and supporting each other in the body of Christ. The secure fastening reminds us that our relationship with God through Christ is firm and dependable.

Reflection

This verse invites us to consider how carefully we follow God’s Word. Moses and the craftsmen did not treat God’s commands as suggestions. They paid attention to small details, knowing that worship of the holy God deserves exactness. We may not build a tabernacle, but we can serve God with the same reverence in our daily tasks, our relationships, and our worship.

The blue lace also speaks of beauty and order in worship. God is not only concerned with function but with fitting honor. Our service to Him should be both faithful and excellent, reflecting His own character. As we go about our lives, we can ask God to bind us closely to Himself, so that we are not easily loosened from His will.

Finally, the verse points to the security believers have in Christ. The high priest’s garments were made to stay in place, and our salvation is held secure by Jesus, our eternal High Priest. Because He lives to intercede for us, we can approach God with confidence and remain united to Him forever.