Freedom From Routine

So I was just reading Galatians 5… Why did I always think growing up that “It is for freedom that Christ has set us free…” is referring to freedom from our sinful nature? Simply understanding who Paul was writing to and why, and then actually absorbing the text reveals that he is referring to freedom from religious law/systems/traditions. Why is this verse often quoted out of context and applied to our sinful nature? Later in the chapter Paul does talk about not gratifying the sinful nature, but for pretty much the first 15 verses, he’s talking explicitly about freedom from religion. Paul was writing to these fairly new Christians