'Firmly' in the Bible

But the man who stands firmly committed in his heart, having no compulsion [to yield to his daughter’s request], and has authority over his own will, and has decided in his own heart to keep his own virgin [daughter from being married], he will do well.

Now I praise you because you remember me in everything and hold firmly to the traditions, just as I delivered them to you.

and by which you are also being saved if you hold firmly to the message I proclaimed to you unless, of course, your faith was worthless.