I'm pretty sure it's one of those things that was so asinine a concept to the ancient world they wouldn't have to include it. You have to look at what marriage was back then. It was a man requesting that another man trade his daughter to him in exchange for cattle, land, etc. (that's why they called them husbands, because daughters were treated like livestock). You can see how this was basically an invalid concept when it involves another man. Even up into the middle ages and Renaissance marriage was in a similar situation. The practice of choosing our own partners as free individuals is relatively recent.
well, god knows everything that ever will be right? :v we have an entire book on how the world is supposed to end after all. so he had to have known about this turn of events and chose to stay silent about it. ---