'One' in the Bible

For there is one God, and one mediator between God and men, the man Christ Jesus,

The overseer therefore must be without reproach, the husband of one wife, temperate, sensible, modest, hospitable, good at teaching;

one who rules his own house well, having children in subjection with all reverence;

Let servants be husbands of one wife, ruling their children and their own houses well.

Let no one be enrolled as a widow under sixty years old, having been the wife of one man,

Lay hands hastily on no one, neither be a participant in other men's sins. Keep yourself pure.