The breastplate of righteousness is a metaphor for the spiritual armor that Christians are supposed to put on every day. The Bible mentions several different pieces of armor that we're supposed to wear, including the breastplate of righteousness. This armor is meant to protect us from the attacks of the enemy, and to help us stand firm in our faith. The breastplate of righteousness is a symbol of God's protection, and it reminds us that we are righteous in Christ no matter what anyone else says or does. We can stand strong against the attacks of the enemy knowing that we are clothed in God's protection.