Need help determining if this is real or not
So I was at work tonight and my wife came up to me and told me a random person was going around random people at work saying things that seemed to be either personal or something people would consider private. Our coworkers never seen this person before but somehow this person would go up to one of them and say “you can’t sleep because you need to talk to god” and say something to another coworker like “you will get a new car don’t reject the next job offered to you” and so on this person also claims to be a godly person or a follower of Christ. I’m worried it’s a evil spirit that is attached to this person but also wondering how can I help determine wether or not this person is speaking from the Holy Spirit or a evil spirit. Is there questions I can ask or is there something I can do to help determine wether this good or bad.