'One' in the Bible

If any be blameless, the husband of one wife, having faithful children not accused of riot or unruly.

One of themselves, even a prophet of their own, said, The Cretians are alway liars, evil beasts, slow bellies.

For we ourselves also were sometimes foolish, disobedient, deceived, serving divers lusts and pleasures, living in malice and envy, hateful, and hating one another.