Exodus 39:15-19

And they made for the breastpiece chains like cords, work of twisted cords of pure gold.

They made two gold filigree settings and two gold rings, and put the two rings on the two ends of the breastpiece.

Then they put the two gold cords in the two rings at the ends of the breastpiece.

And they put the other two ends of the two cords on the two filigree settings, and put them on the shoulder pieces of the ephod at the front of it.

They made two gold rings and placed them on the two ends of the breastpiece, on its inner edge which was next to the ephod.