'Carefully' in the Bible

For if anyone only listens to the word without obeying it, he is like a man who looks very carefully at his natural face in a mirror;

and studies himself carefully, and then goes off and immediately forgets what he looks like.

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].