come for someone—(coll.) rush forward with the object of attacking a person:
- As I opened the gate a great black dog came for me.
go for someone—
1. = come for someone:
- Our dog went for the postman again this morning, he’ll get us into trouble.
2. (coll.) approve of or support a person:
- Will the voters go for him now, that’s the point?
3. be relevant to smb.; concern a person:
- You must arrive on time or be dismissed—that goes for all workers.