'Firm' in the Bible

Then he seized the man’s right hand with a firm grip and raised him up. And at once his feet and ankles became strong and steady,

When he arrived and saw the grace of God, he was glad and encouraged all of them to remain true to the Lord with a firm resolve of the heart,

strengthening and establishing the hearts of the disciples; encouraging them to remain firm in the faith, saying, “It is through many tribulations and hardships that we must enter the kingdom of God.”

So the churches were strengthened in the faith, and they continually increased in number day after day.

Having therefore met with the help which is from God, I have stood firm unto this day, witnessing both to small and great, saying nothing else than those things which both the prophets and Moses have said should happen,