concern (someone) in (something)

To involve someone in something. You really don't need to concern your mother in our financial issues—we're perfectly capable of sorting them out on our own. Don't concern the boss in the minutiae of this project. All he cares about is the finished product. Why would I concern that busybody Gina in anything I'm trying to keep quiet?

to bring someone into some matter; to engage someone in something; to occupy someone with something. Don't concern Dave in our party planning. He doesn't know anything about entertaining. The wrong committee was concerned in this from the very beginning.