Yes, why is some of the old law used as a verbatim "principle" (command) by witnesses nowadays, yet other stuff is ignored?
For instance they take the scripture about "no tattoos" literally, yet the very next verse about not shaving off your beard is said to NOT apply now?
If god is supposed to "never change" , why do the rules change?
And anyway, were not the Jews abandoned by God for being unfaithful? So why should anything from that time be even a "principle"?