'Firmly' in the Bible

and that the Messiah may dwell in your hearts through faith. I pray that you, being rooted and firmly established in love,

Hold firmly to the message of life. Then I can boast in the day of Christ that I didn’t run or labor for nothing.

But as for you, continue in what you have learned and firmly believed. You know those who taught you,

For we have become companions of the Messiah if we hold firmly until the end the reality that we had at the start.