Does it matter how you cook a goat?

Avery had a fever again this morning. Erin stayed home with her and Alec and I went to church and then to the little youth Thanksgiving lunch. It was a lot of fun and the Samuels did a great job, as did Michelle Lindsay. I’m glad that there are so many people who care about the kids.
One thing that I noticed/pondered from Joe’s lesson was about Jonah and the Ninevites. It seems like there is little evangelism of any kind in the Old Testament which is another one of the big differences between it and the New. But here’s a situation where it’s clear that God was interested in non-Israelites before Acts. The differences and similarities between the Old and New have really plagued me for a long time. What is “the Law” that is irrelevant to us now and what is still the way things should be? Obviously we should still keep the old “Thou Shall Not Kill” going but what about the Sabbath? What about the sideburns and the head coverings and the “don’t cook a goat in its mother’s milk” bit that really seemed to be a big deal back then? How and where do we decide what is no longer important or applicable to us these days? I’ve heard people say we have a new Sabbath now, Sunday. But that doesn’t make sense to me really. Sabbath mean’s Seventh, not “Special” or “Bible Day”. Give me a comment here, I’d love to have some input and thoughts on this.