GOD'S WORD® Translation
Then they fastened the breastplate by its rings to the rings of the ephod with a violet cord. So the breastplate was attached just above the belt of the ephod and was held in place. They followed the LORD's instructions to Moses.

American Standard Version
And they did bind the breastplate by the rings thereof unto the rings of the ephod with a lace of blue, that it might be upon the skilfully woven band of the ephod, and that the breastplate might not be loosed from the ephod; as Jehovah commanded Moses.

Berean Study Bible
Then they tied the rings of the breastpiece to the rings of the ephod with a cord of blue yarn, so that the breastpiece was above the waistband of the ephod and would not swing out from the ephod, just as the LORD had commanded Moses.

Douay-Rheims Bible
And a hole for the head in the upper part at the middle, and a woven border round about the hole:

English Revised Version
And they did bind the breastplate by the rings thereof unto the rings of the ephod with a lace of blue, that it might be upon the cunningly woven band of the ephod, and that the breastplate might not be loosed from the ephod; as the LORD commanded Moses.

King James Bible
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.

World English Bible
They bound the breastplate by its rings to the rings of the ephod with a lace of blue, that it might be on the skillfully woven band of the ephod, and that the breastplate might not come loose from the ephod, as Yahweh commanded Moses.

Young's Literal Translation
and they bind the breastplate by its rings unto the rings of the ephod, with a ribbon of blue, to be above the girdle of the ephod, and the breastplate is not loosed from off the ephod, as Jehovah hath commanded Moses.

Exodus 39:21 Additional Translations ...