'Firm' in the Bible

For the Lord will be your confidence, firm and strong,And will keep your foot from being caught [in a trap].

Take hold of instruction; [actively seek it, grip it firmly and] do not let go.Guard her, for she is your life.

When He made firm the skies above,When the springs of the deep became fixed,

When the storm ends, the wicked vanish, but the righteous person is forever firm.

After they're overthrown, the wicked won't be found, but the house of the righteous stands firm.

She equips herself with strength [spiritual, mental, and physical fitness for her God-given task]And makes her arms strong.