'Firm' in the Bible

and lo, also Zadok, and all the Levites with him, bearing the ark of the covenant of God, and they make the ark of God firm, and Abiathar goeth up, till the completion of all the people to pass over out of the city.

For then thou liftest up thy face from blemish, And thou hast been firm, and fearest not.

Iron from the dust is taken, And from the firm stone brass.

When washing my goings with butter, And the firm rock is with me rivulets of oil.

The flakes of his flesh have adhered -- Firm upon him -- it is not moved.

His heart is firm as a stone, Yea, firm as the lower piece.

And their might is firm.

And we have more firm the prophetic word, to which we do well giving heed, as to a lamp shining in a dark place, till day may dawn, and a morning star may arise -- in your hearts;