'Firm' in the Bible

For if the word which was spoken by angels was firm, and every transgression and disobedience received just retribution,

But Christ as a son over his own house; whose house are we, if we hold fast the confidence and the rejoicing of the hope firm unto the end.

For we are become companions of the Christ if indeed we hold the beginning of the assurance firm to the end;

We have this hope as an anchor for our lives, safe and secure. It enters the inner sanctuary behind the curtain.

For he was looking forward to the city with firm foundations, whose architect and builder is God.

Cut through and make smooth, straight paths for your feet [that are safe and go in the right direction], so that the leg which is lame may not be put out of joint, but rather may be healed.

Therefore, since we receive a kingdom which cannot be shaken, let us show gratitude, and offer to God pleasing service and acceptable worship with reverence and awe;