The cries for justice in society are loud but I don't know how motivated we are for God's justice. God does not "leave the guilty unpunished". This is encouraging until we realize that we are as guilty as anyone. Our sin put Jesus on the cross. Our failures to be obedient to God are what anger Him. It is always easy to point to others and their failings and their need for punishment and at the same time, we find it equally easy to ask for grace for ourselves.
Lord, thank you that your anger is slow and you give me the chance for reconciliation.