How to use "employed" in a sentence

For only when our arms are sufficient beyond doubt, can we be certain beyond doubt that they will never be employed.

He usually killed at weekends, so he was employed, perhaps as a butcher

He employed agents to find Thenardier, but without success

It was ludicrous to suspect any of them of being employed by the secret organization that had blown up her house

At least half of the people who worked for it did not even realize it existed; some thought they were employed by the FBI; others were sure they worked for the CIA; and still others believed that they were in the hire of various branches of the Treasury Department, including the Secret Service

The table, the chairs, the credenza, and the hutch all glowed warmly because of the prodigious amount of furniture polish that had been buffed into the wood with even more vigor than he had employed when shining his dazzling shoes