Exodus 28:25

And the ends of the chains themselves, you shall couple with two hooks, on both sides of the ephod, which looks toward the breastplate

Other versions

King James Version

And the other two ends of the two wreathen chains thou shalt fasten in the two ouches, and put them on the shoulderpieces of the ephod before it.

English Standard Version

The two ends of the two cords you shall attach to the two settings of filigree, and so attach it in front to the shoulder pieces of the ephod.

New International Version

and the other ends of the chains to the two settings, attaching them to the shoulder pieces of the ephod at the front.