Our Lord forbids an unforgiving and revengeful spirit, by being quick to take offence, retaliating, having a quarrelsome and contentious demeanour, a keenness to assert one’s right, is contrary to the mind of Christ. The world may be at peace with such attitudes but our Lord says “ye resist not evil.” But rather, you are to have a spirit of universal love and charity. You should put away all such malice.