katheko describes what is suitable or proper, whether for a person’s continued life or for conduct.

The two verses use the term for suitability or propriety: Acts 22:22 applies it to a person’s living, while Romans 1:28 applies it to actions done by those given over to a depraved mind.

1. Suitable or proper in a stated situation · dominant

   In Acts 22:22, the imperfect active indicative form occurs in the claim that it was not suitable for the man to live; the APB renders the clause “for it is not fit for him to live.” In Romans 1:28, the present active participle describes actions that are not proper to do, and the APB renders this as “to do what is not fitting.”

   Acts 22:22Romans 1:28

In the Anselm Project Bible: The APB presents the term with “fit” in Acts 22:22 and “fitting” in Romans 1:28. These renderings confirm the clauses’ overall evaluation of suitability rather than establish separate meanings.