The one false teaching that Satan has used to attempt to bridge the gap between the false religions and the true religion is the false doctrine of "losing your salvation." Most people who teach you can lose your salvation teach that you have to work to keep your salvation or work to get your salvation. So they are relying on their works to get them to heaven instead of Jesus and what Jesus did for them on the cross of Calvary. This means they are still lost. They take passages out of context, trying to make them say you have to work your way into heaven and that you can lose your salvation.