'Firm' in the Bible

I will take away the kingdom from the dynasty of Saul by making the throne of David firm over Israel and Judah from Dan to Beer-sheba!"

And thy house and thy kingdom shall be made firm for ever before thee: thy throne shall be established for ever.

so that Your Name may be magnified forever, saying, ‘The Lord of hosts (armies) is God over Israel;’ and may the house (royal dynasty) of Your servant David be established before You.

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.

“He makes my feet like the doe’s feet [firm and swift];He sets me [secure and confident] on my high places.