민수기 5:23 할라카: Mishneh Torah, Tefillin, Mezuzah and the Torah Scroll & Mishneh Torah, Rest

How is the ink prepared? Soot of oils or of pitch, wax or similar substance is collected; kneaded with gum of trees and a little honey; thoroughly wetted and pounded till it is like wafers. It is then stored away. When the scribe wishes to write, he soaks it in water in which gall-apples or similar substances have been steeped, and with this fluid he writes. Such writing when erased leaves no mark. This is the best way to write scrolls of the Law, Tephillin and Mezuzahs. If the scribe has written with fluid of the gall-oak or of caper,^*Caper: flower-buds or seeds of a low shrub of Mediterranean countries, used as a condiment. since the writing stays and is not rubbed out, scrolls of the Law, Tephillin or Mezuzahs so written are fit for use.

And court messengers may go out to render forbidden mixtures (kilayim) ownerless. And we may redeem captives, appraisals, expropriations and consecrated items. And we may give water to sotah women. And we may burn a [red] heifer. And we may behead the calf (required when we find someone killed in the field). And we may pierce [the ear of] an Israelite slave. And we may purify a metsora. And we may mark graves—the mark of which had gotten rubbed off by the rain—in order that priests (kohanim) separate themselves from them. As all of these are needs of the community.