God help someone exclamation3 •Expressing pity, commiseration, or benediction (in a literally or figuratively religious way).God help him, he's just trying to stay afloat.Well, you certainly tried your best, God help you. •An expression of astonishment, dismay, bemusement, or a jocular hint of any of those.God help us! They're actually going to run an AI arms race without bothering to agree a framework for AI safety first.They might just have the tiger by the tail, God help us. •Expressing a threat or a warning to the person who violates some rule or condition. (The implication is that something so bad will happen, such as the speaker punishing the other person or a disaster ensuing, that the other person will need God's protection from that wrath or calamity.)God help you if you break my equipment because you were acting like a bull in a china shop. [ = I'll beat your ass if you do that.]God help you if you set sail in this weather. [ = You'll be lucky to survive if you do that.]