(My note: Holy Spirit spoke to me audibly at waking and said “Choose righteousness over worldliness, simplify and get out of debt.” The above post made me reflect on righteousness as an actual covering for our body: armor against the enemy of our soul: Satan.)
Righteousness exalts a nation, but sin brings disgrace upon any people. (Proverbs 14:34)
The breastplate a Roman soldier wore was made of bronze or leather and covered the entire torso. This piece of armor protected the heart.
Source: Modern Warfare: Breastplate of Righteousness † His Kingdom Prophecy