The laws detailed by the Deuteronomist are mainly about health and hygiene. All right in themselves, but as with modern practice, we need to stay aware of and alert to the tendency to set mere customs in concrete and entirely miss the original point.
Jesus doesn’t get really uptight about too much, but hypocrisy sets him right off. ‘You guys have to be fair dinkum! Scrap misleading rules and pay attention to what is real. Check your thinking; check your doing; we’ll know you by what comes from you.’
Put your money where your mouth is, says James.