Ephesians 6:14

Stand, therefore, having girded your loins about with truth, and having put on the breast-plate of righteousness,

1 Thessalonians 5:8

But let us, being of the day, be sober, having put on a breast-plate of faith and love; and, as a helmet, a hope of salvation;

Revelation 9:17

And thus I saw the horses in the vision, and those who sat on them, having breastplates as of fire, and hyacinth, and brimstone. And the heads of the horses are as the heads of lions; and out of their mouths proceed fire, and smoke, and brim-stone.

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 girded your loins about with truth, and having put on the breast-plate of righteousness,
1 Thessalonians 5:8
But let us, being of the day, be sober, having put on a breast-plate of faith and love; and, as a helmet, a hope of salvation;
Revelation 9:17
And thus I saw the horses in the vision, and those who sat on them, having breastplates as of fire, and hyacinth, and brimstone. And the heads of the horses are as the heads of lions; and out of their mouths proceed fire, and smoke, and brim-stone.