Easy comebacks ?

[Belacqua]

Matthew 5:18.

And yet, modern Christians selectively pick and chose which mitzvahs they keep and which they discard - they still 'remember the Sabbath and keep it holy', but they're not terribly keen on burnt offerings. 

Boru

Right. And exactly what Jesus meant by "fulfill" the law is something that's interesting to discuss. There is much disagreement among Christians. Simple accusations which treat all Christians as sola scriptura literalists only shut down that conversation. 

One view is that the requirement for detailed laws is a sort of human childhood. In this view, people graduated into a more demanding relation to the law, by being required to follow its spirit rather than its letter. That's what the whole "cast the first stone" thing is about. 

There are also Christians in a minority antinomian tradition who say that the God of the Old Testament is Satan, and it was the giving of the law, not the breaking of it, which caused the Fall. 

So we can say they "cherry pick," or we can say that a major part of Christian tradition is working out precisely what relation to the law we should have. It varies widely according to group and era.