What is the origin of the idiom "feed someone to the wolves" and when to use it?

The idiom "feed someone to the wolves" has its origins in the metaphorical image of someone being sacrificed or abandoned to face danger or a difficult situation alone, much like a literal act of throwing a person to a pack of wolves. This idiom is typically used to describe a situation where someone is left to deal with a difficult or dangerous circumstance on their own, usually by those who should have supported or protected them. It implies betrayal, abandonment, or lack of loyalty.