ACC ~ 1 Peter 3 v17

WHETHER INJUSTICE IS SOMETIMES USEFUL. AUGUSTINE: Everyone who lies acts unjustly, and if lying ever seems to be useful to someone, it may be that injustice sometimes seems useful to him. But in fact injustice is never useful, and lying always does harm. ON CHRISTIAN DOCTRINE 1.40.

UNJUST SUFFERING IS STILL MEANINGFUL. ANDREAS: Once again, Peter exhorts us not to grieve over unjust suffering, if that is God’s will for us. He teaches us that we suffer for the specific purpose of being trained for what we are meant to be according to the mercy of God. CATENA.

UNJUST SUFFERING HAS UNEXPECTED BENEFITS. OECUMENIUS: There are two benefits to be gained from unjust suffering. First, the righteous person who suffers grows in righteousness as a result of his patience. Second, the sinner who is spared in this way may be converted by seeing someone else suffer on his behalf. COMMENTARY ON 1 PETER.