Yes- we're taught to become a "Christian" you have to accept that Christ was a human sacrifice-to basically build a bridge between God and Man ("The only way to the Father is through the Son"..."For God so loved the world he gave his only begotten Son..." John 3:16 (?))
The Mosaic laws were often "dropped" for several reasons, Jesus "renewed them" in the NT, culturally they were unnecessary so a "pinch of salt" is often needed. For example, pork was never eaten not because it's an "unclean" animal but because of the heat of the Middle East-pork spoils the fastest...that doesn't mean, to me, that I can't eat pork today. In my Bible study we studied things that were "unsaid" in the Bible and how to take a "conscience" decision on the matter-and how we think God would feel if we did that.
For eg it doesn't say hmmmm "Don't pull wings off birds using your teeth".
I wouldn't do that as I think that it's cruel, and God wouldn't like it (also it would be culturally unacceptable).
So that pinch of salt is normally a faith call-judgement within the circumstances.
PS: This is NOT a get out clause of things we don't want to do!