en_tq/1co/05/10.md

Did Paul mean for them not to associate with any sexually immoral people?

Paul did not mean the immoral people of this world. You would have to go out of the world to stay away from them [5:10]

With whom did Paul mean for the Corinthian believers not to associate?

He meant for them not to associate with anyone who is called a brother or sister in Christ who is sexually immoral, greedy, verbally abusive, a drunkard, a swindler or an idolater [5:10; 5:11]