Well, Astrophe, I have to quote your own words back at you. In a long post earlier in the thread, you quoted that passage from Matthew, and then promptly started trying to undermine it. "The New Testament is to be read 'differently'," you said. "This is a right, historical reading of the text, not a clever way for Christians to find loopholes." And reading it 'differently' enables you to look at a law such as that from Leviticus condemning homosexual behaviour, and claim that the law still holds good, but the punishments are obsolete. But where do you get the authority for that interpretation, since in many cases the law and punishment are pretty well inseparable, often co-existing in the same statement. And Leviticus is a case in point: " If a man also lie with mankind, as he lieth with a woman, both of them have committed an abomination: they shall surely be put to death. Their blood shall be upon them."
I'm certainly not against a more generous and humanist reading of scripture, but I'm wondering why you seem to have abandoned it now in favour a more literal-minded approach, made more militant by the way you word your challenge to me - "I'm still interested to now how you wriggle out of Jesus' words". Wriggle out? Yikes! You've become quite the inquisitor!
Well, to rise to the challenge, I think I would read that speech in the same spirit as his "Give unto Caesar" speech, which I never took to be a statement of support for Roman rule. Jesus tended to answer people based on the intent of the questioner. If people were trying to trap him, he had legitimate ways of extricating himself, including ambiguity.
There is also the question of supporting evidence. When Jesus speaks of turning the other cheek, that's something I can take seriously, since it gets plentiful support from his words and deeds elsewhere in the NT. It has collateral. If the statement that you quote from Matt 15 is to be taken seriously, I'd expect the same for that. If Jesus was a supporter of OT law, it was odd that he didn't spend much time talking about it or urging people to follow it, at least as far as I remember. But you're much more familiar with the texts than I am, so you tell me. Where else, either by word or deed, did Jesus recommend adherence to OT law? Where is the collateral?