I have searched in my Logos Library for birkat-ha-minim, the so-called "curse of the Christians". On wikipedia it said it was a prayer. What is its origin? Why is it not in the apocryphal texts? I cannot find anything of it other than it being referred to in J. Louis Martyn's History and Theology in the Fourth Gospel and in Craig Keener's Gospel of John commentary. Is this accessible in Logos? If so where do I buy it?