Midrasch zu Schemot 18:8

R. Ami and R. Assi were accustomed to sit between the pillars [of the academy] and every now and then to rap [the bolt of the door] and say: "Is there any one who requires adjustment of a dispute? Let him come in." _ _„R. Chisda and Rabba b. R. "Huna were holding court the entire day and were becoming weak. R. Chiya b. Raba of Difty recited to them the passage: And the people stood about Moses from the morning unto the evening. (Ex. 18, 8.) How can we imagine that Moses was holding court the entire day? When did he study? We must therefore say that a Judge who, even for one hour, passes judgment according to its true equity, is credited by Scripture as if he had become a partner of God in the creation of the world, for it is written here (Ex. 18, 13.) From the morning unto the evening, and it is written, And it was morning and it was evening the first day. [Hence you need not hold court the entire day.] Until when should the work of justice continue? R. Shesheth said: "Until mealtime." Rami b. Chama said: "What is the Biblical passage for it? Woe to thee, O Land. when thy king is low-minded, and when thy princes eat in the morning. Happy art thou, O Land, when thy king is noble-spirited, and thy princes eat at the proper time for strengthening and not for gluttony (Ecc. 10, 16.) i.e., for strengthening of the Torah and not for the gluttony of wine." Our Rabbis taught: "The first hour [of the day] is the time when the Lydians eat; during the second hour robbers eat; during the third hour (rich) heirs eat; during the fourth hour laborers eat; during the fifth hour the people in general eat." Is this so? Has not R. Papa said that during the fourth hour the people in general eat? We must therefore say that "During the fourth hour the people in general eat; during the fifth hour laborers eat; during the sixth hour scholars eat; from this hour on eating is like throwing a stone into a skin-bottle (it has no effect)." Abaye said: "This applies only to a case where nothing was tasted in the morning; but if something were tasted in the morning then it matters little [how late he eats]."