Deliver us from evil, we pray. That's what Jesus taught us to pray. But, in Greek, the petition in the Lord's Prayer is this: Deliver is from the evil one. Evil is not an abstract concept. It's not an outdated, old-fashioned idea like swinging a dead cat over your head to ward off evil. Evil is personified and personalized as the work of the evil one. The devil, Satan, the father of lies, the Prince of Darkness masquerading as an angel of light.