Keilim or Kelim is the first tractate in the Order of Tohorot in the Mishnah. It contains thirty chapters, making it the longest tractate in the Mishnah. The Tosefta on Keilim consists of twenty-five
A group of Kohanim studying the Mishnayot laws of Keilim in anticipation of the rebuilding of the Temple in Jerusalem
Isaac ben Melchizedek, was a rabbinic scholar from Siponto, Italy, and one of the first medieval scholars to have composed a commentary on the Mishnah, of which only his commentary on Seder Zera'im su
Page from Ben Melchizedek's commentary, Kil'ayim 1:4 (Courtesy of the British Library)