If you found two people wrestling, what would it take for you to intervene? If you were at a public event, like a church picnic or a community gathering at a park, what would force you to step in? Certainly if one of the combatants was wrestling unwillingly you could jump to their aid. If there was an imminent risk of injury, it would be worthwhile to stop them. Are all other cases of wrestling with two willing combatants okay? I think there is another exception, one that points to the kind of closeness Jacob experienced, and that we too are invited to experience, in wrestling God.