Ephesians 6:14

Stand therefore, having your loins girt about with truth, and having put on the breastplate of righteousness,

1 Thessalonians 5:8

But let us who are of the day keep awake, having put on the breast-plate of faith and love, and for an helmet the hope of salvation.

Revelation 9:17

And thus I saw the horses in the vision and them that sat on them, having breast-plates of fire and hyacinth and brimstone: and the heads of the horses are as the heads of lions, and out of their mouths goeth fire, and smoke and brimstone.

Treasury of Scripture Knowledge

Summary

And these are the garments which they shall make; a breastplate, and an ephod, and a robe, and a broidered 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 in the priest's office.

Bible References

A breastplate

Ephesians 6:14
Stand therefore, having your loins girt about with truth, and having put on the breastplate of righteousness,
1 Thessalonians 5:8
But let us who are of the day keep awake, having put on the breast-plate of faith and love, and for an helmet the hope of salvation.
Revelation 9:17
And thus I saw the horses in the vision and them that sat on them, having breast-plates of fire and hyacinth and brimstone: and the heads of the horses are as the heads of lions, and out of their mouths goeth fire, and smoke and brimstone.