Grace....it doesn't mean you don't have to keep working to be a good person. Being saved by grace doesn't give you free reign to continue to make mistakes. We still need to try our best to be good people. We will fail, but we still have work harder.
Do not tolerate being vilified. Distance yourself from those who seek to take underhanded jabs at you while maintaining their innocence. Such behavior barks of immaturity and a complete disregard for the feelings of others.