Musar for Sanhedrin 203:12
מאי חבר הוא לאיש משחית חבר הוא לירבעם בן נבט שהשחית ישראל לאביהם שבשמים
What is meant by 'with a new garment'? — R. Nahman said: As a new garment: just as a new garment has no defect, so was Jeroboam's scholarship without defect. Another explanation: A new garment intimates that they expounded new teachings, such as no ear had ever heard before. What is taught by, 'and they two were alone in the field'? — Rab Judah said in Rab's name: All other scholars were as the herbs of the field before them.<span class="x" onmousemove="('comment',' I.e., were of no account at all in comparison with them. ');"><sup>21</sup></span> Others say that all the reasons of the Torah were as manifest to them as a field.<span class="x" onmousemove="('comment',' Even of laws of which the reason is generally unknown. ');"><sup>22</sup></span>