Letter 5

The impurity of heresy and the heresies that are growing stronger — may Hashem Yisburach have mercy upon us with His great mercies, to strengthen ourselves with all our strength — to guard ourselves very greatly from the falsehood and the filth that roam the world of false faiths. And even from the erring ones among the God-fearing and the believers — who are distant from the true Tzadik, from the true truth — one must also guard oneself greatly. And in this there is much to say — and it is impossible to explain, because of several reasons.