Ephesians 6:14

Stand, therefore, having your loins girded about with truth, and wearing the breastplate of righteousness,

1 Thessalonians 5:8

But let us, who are of the day, be sober, having on the breastplate of faith and love, and for a helmet, the hope of salvation:

Revelation 9:17

And thus I saw the horses in the vision, and those who sat on them; they had breastplates, fiery, and hyacinthine, and sulphurous: and the heads of the horses were like the heads of lions, and out of their mouths issued 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 girded about with truth, and wearing the breastplate of righteousness,
1 Thessalonians 5:8
But let us, who are of the day, be sober, having on the breastplate of faith and love, and for a helmet, the hope of salvation:
Revelation 9:17
And thus I saw the horses in the vision, and those who sat on them; they had breastplates, fiery, and hyacinthine, and sulphurous: and the heads of the horses were like the heads of lions, and out of their mouths issued fire and smoke and brimstone.