Ephesians 6:14

Stand therefore, being girded about as to your loins with truth, and being invested with the breastplate of righteousness,

1 Thessalonians 5:8

but let us, who are of the day, be sober, having put on the breastplate of faith and divine love; and the helmet, the hope of salvation:

Revelation 9:17

And thus I saw the horses in the vision, and those sitting on them, having breastplates as of fire, and of hyacinth, and of brimstone: and the heads of the horses were as of the heads of lions; and out of their mouths proceeds 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, being girded about as to your loins with truth, and being invested with the breastplate of righteousness,
1 Thessalonians 5:8
but let us, who are of the day, be sober, having put on the breastplate of faith and divine love; and the helmet, the hope of salvation:
Revelation 9:17
And thus I saw the horses in the vision, and those sitting on them, having breastplates as of fire, and of hyacinth, and of brimstone: and the heads of the horses were as of the heads of lions; and out of their mouths proceeds fire and smoke and brimstone.