" Can You Remind of the Dangers of the 'Hebrew Roots Movement'?"

"
Paul told them in no uncertain terms that
they were wrong, even more, he told them that they had
effectively declared themselves anathema from Christ;
this was a mighty serious matter. In making these
comments He effectively disfellowshiped them! The
legalists had no understanding of the full magnitude and
significance of Christ's work upon the cross, they
thought it was just something to merely add to other
observances. They just did not 'get' how huge the New
Covenant was. In responding to these legalists, we see
Paul the Apostle at his most angry!..."

http://www.ukapologetics.net/16/hebrewroots.htm