How to use "firm" in a sentence

Intelligence, patriotism, Christianity, and a firm reliance on Him who has never yet forsaken this favored land, are still competent to adjust in the best way all our present difficulty.

So, first of all, let me assert my firm belief that the only thing we have to fear is fear itself - nameless, unreasoning, unjustified terror which paralyzes needed efforts to convert retreat into advance

The mayor turned to Inspector Javert and said, in a soft, firm voice, 'This woman must be released.'

The opening was closed with a strong iron gate, held firm by a huge, rusty lock

But the gate was solid and the bars were firm.

Elliot didn't tell the judge about the malicious prankster, for that seemed like an unnecessary complication; he still believed that once the fact of Danny's death was established by the exhumation, the quickest and surest way of dealing with the harassment was to hire a first-rate firm of private investigators to track down the perpetrator

Elliot's mind raced through a list of cases that his law firm was currently handling, searching for some connection with these two intruders, but he couldn't think of one.

Her hand was cold, but her grip was firm.

Meanwhile, we're checking out Stryker's associates in his law firm, his friends, the woman's friends, anyone with whom they might have taken refuge."

I received a death threat by phone the night before the arbitration - I can't say for certain that it was from the writer; the voice was so deep that it might have been his mother - and the next morning the law firm handling the studio's case assured me that they had taken extra security measures for the meeting