There's no way you can do enough good works to gain favor with a perfect and Holy God. As Pastor Terry continues his teaching series through the book of Job, he'll be reminding you that in the same way, you can't earn salvation, you also can't maintain salvation by good works. You can never be good enough, because the best you can possibly do, is as filthy rags before a righteous God. This is why only God Himself, Jesus in the flesh was an acceptable sacrifice on the cross for your sin.
