If God says that sex outside the marital arrangement is not according to his purpose, then I don't see why there would be an issue with there being a penalty against a man who fornication with my daughter. I mean, I deffinitely believe sex as being something that's deeply intimate between 2 people who have dedicated their lives to eachother. I'm not saying anyone has to agree with me, but it just makes sense to me. I wish I could say I was a "virgin" so to speak when I married my wife. But I wasn't, & it's annoying to think I did it with someone else prior to her, especially now that I've been married for awhile. It feels....wierd, for lack of a better word, that I was ever in that situation with some other chick.
When it comes to a purchase price, I also see no problem with that for the time period & just the general attitude people tended to have. Once a woman lost her virginity, men usually weren't interested in them. That's not God telling them not to be interested, that's men back then & the attitude they tended to have. That's not to say that no one ever married someone who was no longer a virgin, like when Bo'az married Ruth who had lost her husband. There's alot of things it seems like God allowed to happen, taking into account how people tended to be. Like allowing men to marry multiple wives. It was supposed to be just one man & one woman based on his purpose, but atleast for some time after the "original sin" etc. etc., he put up with men having multiple wives. But by the time of the Christian congregation, it was made clear that a man should be the husband of one wife. Might've even been(assuming it happened) for after the flood, to help fill up the population again, by having multiple wives to produce a plethora of kids?
Oh, & on divorce, yeah, that wouldn't fly today. No doubt. People divorce over very minute things these days. In the scriptures, divorce was only allowed if the mate had commited adultry. I have no problem with that. I even have friends who wanted to divorce their mates because they were abusive etc., but they seperated from them, & later the abusive mate changed into a completely different person, & treated them with the utmost respect. Now they're glad they never got divorced. But, people are going to do, what they're going to do.
Yeah, techincally they're supposed to observe the Mosaic law, but they can't. They have neither a temple, nor an ark of the covenant. IIRC, I think they can't even rebuild the temple, since I think that's where the Dome of the Rock is, which is Muslim territory. They could try to build a temple somewhere else I supposed & not be held up on one location, & make sacrifices, etc., but, they haven't thus far that I know of.
Yeah, Jesus did fulfill the law. I usually look at it like 2 different laws, but a bunch of the laws did carry over. They knew there was going to be a new law ahead time along with the Messiah. I don't recall specifically, but it might've been around Jeremiah's time when the prophecy of a new law was supposed to have been written, though, I could be wayyyy off base on that. Also, I find that the Old & New Testaments are valid, they're there for a reason. I don't know what it'd be like, to only have the New Testament, seems like nothing would make sense. Like Jesus sacrifice for "our sins" being forshadowed by the sacrifices in the temple, as well as the sacrifice that Abraham didn't have to do on his own son. To me atleast, it just helps put it all together. And certainly the Israelites & Christians in the Bible needed the scriptures prior to their respective times. Plus, without Genesis & Job, we wouldn't really know why there's suffering, why God allows this or that, why "the Devil" exists & what his goal is, etc. But, I have had some people at the door who only believe in the New Testament, & feel the Old Testament means nothing. That to me, is cherry picking what a person believes or wants to believe.
Ofcoarse, I don't claim to understand it all, by no means. Forever a student I shall be. I've only read thru the Bible back to back once so far. Sure, I've read millions of scriptures at various times, but only once totally in order of how it's presented. I'm a horrible reader, so it takes me forever to get thru any kind of book. So, my learning, in regards to anything in life, is slow to say the least