1 Corinthians 13:6
It does not rejoice at injustice, but rejoices with the truth (when right and truth prevail).
It is time to take a heart check if the believer is rejoicing at injustice. The heart may need some Jesus and Bible resuscitation to bring it back to the love life when anger and resentment towards others are spoken. We may need a heart check. Love understands that it can control its actions and reactions but not the actions of others.