In the early days of computing, Jesus and the Devil were constantly arguing about who was better at writing computer code. God got sick of the bickering, so he set them a project to see which one of them would do it better, saying he would decide who was the winner at the end of the day.
Jesus made a prompt start and wrote very methodically, writing good, but not inspired code. The Devil lounged around for a while, then set to and started to write some very clever stuff, which to be honest was better, if harder to read, than Jesus's work.
God went by and had a look. The Devil was patently gloating, quite sure that he would win over Jesus's pedestrian style of code. God had to admit he probably would.
In the afternoon there as a huge lightning strike and all the computers crashed. The Devil lost all his work. When they handed in their efforts, Jesus won. The Devil was furious, remonstrating with God that he knew perfectly well that he was a better programmer, and he should have won.
God shrugged, and said, "Jesus saves."