Be self-controlled and alert. Your enemy the devil prowls around
like a roaring lion looking for someone to devour. Resist him,
standing firm in the faith, because you know that your brothers
throughout the world are undergoing the same kind of sufferings.
-- 1 Peter 5:8-9

Many promising reconciliations have broken down because, while
both parties came prepared to forgive, neither party came
prepared to be forgiven.
-- Charles Williams