The historical relationship between Christians and Jews for most of the two thousand years of Christianity has not been good and it's been mostly persecution by Christians of Jews - not all the time, not every place, but mostly it's been that. I think that's just a terribly regretful thing. I don't see it anywhere in the Scriptures that I read, that Christians are to persecute Jews. I think it's been quite damaging. I think it's been a bad witness.
