Exodus 39:8

And they made the breastlap of cunning work, after the work of the ephod: even of gold, jacinth, scarlet, purple and twined bysse.

Exodus 25:7

onyx stones and set stones for the Ephod and for the breastlap.

Exodus 28:4

"These are the garments which they shall make: a breastlap, ephod, a tunicle, a strait coat, a mitre and a girdle. And they shall make holy garments for Aaron thy brother and his sons, that he may minister unto me.

Exodus 28:13-29

And thou shalt make hooks of gold,

Leviticus 8:8-9

And he put the breastlap thereon, and put in the breastlap light and perfectness.

Psalm 89:28

My mercy will I keep for him for evermore, and my covenant shall stand fast with him.

Isaiah 59:17

He put righteousness upon him for a breastplate, and set the helmet of health upon his head. He put on wrath instead of clothing, and took jealousy about him for a cloak:

Ephesians 6:14

Stand, therefore, and your loins gird about with verity, having on the breastplate of righteousness,

Treasury of Scripture Knowledge

Summary

And he made the breastplate of cunning work, like the work of the ephod; of gold, blue, and purple, and scarlet, and fine twined linen.

Bible References

General references

Exodus 25:7
onyx stones and set stones for the Ephod and for the breastlap.
Exodus 28:4
"These are the garments which they shall make: a breastlap, ephod, a tunicle, a strait coat, a mitre and a girdle. And they shall make holy garments for Aaron thy brother and his sons, that he may minister unto me.
Leviticus 8:8
And he put the breastlap thereon, and put in the breastlap light and perfectness.
Psalm 89:28
My mercy will I keep for him for evermore, and my covenant shall stand fast with him.
Isaiah 59:17
He put righteousness upon him for a breastplate, and set the helmet of health upon his head. He put on wrath instead of clothing, and took jealousy about him for a cloak:
Ephesians 6:14
Stand, therefore, and your loins gird about with verity, having on the breastplate of righteousness,