Now you're confusing me.
Previously, you said the OC principles were still in place today.
Well, let's look at a few examples of what took place in the OT:
(Judges 19:25) ... So the man took his concubine and sent her outside to them, and they raped her and abused her throughout the night, and at dawn they let her go.
(Gen 19:8) Look, I have two daughters who have never slept with a man. Let me bring them out to you, and you can do what you like with them.
In Judges, a man offers his daughter and his friend concubine to the men outside, and tells them they can all have sex with them all night long.
In Genesis, it's almost the same situation, except this time Lot offers both his daughters to the men outside, and tells them they can all have sex with them all night long.
Back to Judges 19:25:
(Judges 19:25) So the man took his concubine and sent her outside to them, and they raped her and abused her throughout the night, and at dawn they let her go.
As we see above, the concubine was raped all night long by the men.
But that's not the worst of it.
Then:
(Judges 19:29) When he reached home, he took a knife and cut up his concubine, limb by limb, into twelve parts and sent them into all the areas of Israel.
As we see, after the poor concubine girl was raped all night long, she was then cut up into 12 pieces and sent to the twelve regions of Israel.
Now, I don't know about you, but I don't see anything like that in the New Covenant teachings of Paul.
So, why didn't the fathers of these daughters, and owner of the concubine in the two above events "do good first"?