'Liberty' in the Bible

But he who looks carefully into the perfect law, the law of liberty, and faithfully abides by it, not having become a [careless] listener who forgets but an active doer [who obeys], he will be blessed and favored by God in what he does [in his life of obedience].

Speak and act [consistently] as people who are going to be judged by the law of liberty [that moral law that frees obedient Christians from the bondage of sin].