'Firmly' in the Bible
But Christ is faithful as a son over God's house. We are of his house, if in fact we hold firmly to our confidence and the hope we take pride in.
For we have become companions of the Messiah if we hold firmly until the end the reality that we had at the start.
Inasmuch, then, as we have in Jesus, the Son of God, a great High Priest who has passed into Heaven itself, let us hold firmly to our profession of faith.
But, beloved, even though we speak to you in this way, we are convinced of better things concerning you, and of things that accompany salvation.
Let us continue to hold firmly to the hope that we confess without wavering, for the one who made the promise is faithful.