God help

Your brother gets home from a party very late at night and he's drunk. He's never been drunk before and your mother wouldn't appreciate finding him like that. So you try your best to hide him from her by guiding him to the bathroom and then making the bed so he can sleep. Here's what you say to him as a warn that he may be punished: God help if our mom catches you drunk like that. He would kill you. The expression God help or Heaven help is something you say in order to warn someone that they might be hurt or punished.

You also say that when you're worried about someone who's in a very dangerous situation. For example, you take a look at how dreadful the night is and say to yourself: God help anyone who has to be outdoors on a dreadful night like this. That's also a way to show sympathy and that you care for the well being of others. I hope this is helpful. Leave your own examples down in the comment section. Talk to you next time!