The “How Much More” Rabbinic Principle of Interpretation in the Teaching of Jesus

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The use of simple-to-complex reasoning (kal vahomer in Hebrew) is as frequent in the teaching of Jesus as in the teaching of the sages.

Revised: 25-Sept-12

Throughout the history of Judaism, the Torah has been investigated and analyzed by means of various rules of interpretation. These hermeneutic (interpretative) principles are statements of deductive reasoning.

The sage Hillel, a contemporary of Herod the Great, compiled a list of seven such rules. We will focus upon the first in the list, קַל וָחֹמֶר (qal vāḥomer; “simple and complex,” “kal vahomer”). This is a logical deduction that can be drawn from a simple truth about a less obvious situation, or from something known about something unknown. For example, “Silence becomes a scholar; how much more a fool” (Tosefta, Pesahim 9:2). Notice the key phrase “how much more,” which appears in most examples of rabbinic simple-to-complex reasoning.

In the Mishnah

The tractate Yevamot in the Mishnah preserves a halachah, or rabbinic legal ruling, inferred from Deuteronomy 23:3 and 23:7 by means of this principle:

No Ammonite or Moabite may be admitted into the congregation of the Lord, and this is a permanent prohibition. Ammonite and Moabite women, however, may be admitted immediately [after conversion]. Egyptians and Edomites are prohibited only until the third generation, regardless of whether they be males or females.

Rabbi Shimon rules that Egyptian and Edomite women may be admitted immediately. He said, “This is deduced by the “how much more” principle. If, where Scripture permanently prohibited the males, it permitted the females immediately, how much more should the females be permitted immediately where Scripture prohibited the males only until the third generation? (m. Yevamot 8:3)

Non-Legal Contexts

Two further examples from the Mishnah illustrate this type of reasoning in non-legal contexts:

If, speaking of a light commandment that deals with something that is worth only an issar [a small bronze coin], the Torah said, “in order that you may prosper and have long life,” how much more for heavy commandments in the Torah? (m. Hullin 12:5)

Once again the phrase “how much more” signals the use of simple-to-complex reasoning, used here to urge the observance of all the commandments, whether they are major or relatively insignificant. The specific commandment referred to, found in Deuteronomy 22:6-7, commands that a mother bird be released when caught with her young. In the time of the sages a bird was valued at one issar, about one twenty-fourth of a day’s wage.

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This article originally appeared in two parts. Part two appeared in issue 9 of the Jerusalem Perspective magazine. Click on the image above to view a PDF of the original magazine article.
This article originally appeared in two parts. Part one appeared in issue 8 of the Jerusalem Perspective magazine. Click on the image above to view a PDF of the original magazine article.

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  • David N. Bivin

    David N. Bivin

    David N. Bivin is founder and editor of Jerusalem Perspective. A native of Cleveland, Oklahoma, U.S.A., Bivin has lived in Israel since 1963, when he came to Jerusalem on a Rotary Foundation Fellowship to do postgraduate work at the Hebrew University. He studied at the Hebrew…
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