If Jesus died for all sins then how come believers of Jesus need to worry about sinning these days? As I understand it, his dying atoned for all sins of humanity. So if they are all atoned, why worry about sinning? Though it says in the NT that one should follow certain commandments, why bother if you know already that your [future] sins have been atoned? It seems paradoxical to me that it tells you to keep certain commandments, yet all your sins have been atoned. What is the purpose then of keeping the commandments?