Kidneys

Sources

Tangential to the subject of kidneys, the Gemara cites that which the Sages taught in a baraita with regard to the roles of various organs: The kidneys advise, the heart understands, the tongue shapes the sounds that emerge from the mouth, the mouth completes the shaping of the voice, the esophagus takes in and lets out all kinds of food, the trachea produces the voice,

Berakhot 61a:29

"To the leader; a psalm of David," says Nabal. Why does the verse mention the heart and kidneys out of all the organs? Because the eyes follow the heart, and the ears, intestines, and 248 organs in a person all follow the heart. The kidneys advise the heart, and the heart decides. Therefore, only the heart and kidneys are mentioned, and the Lord examines the heart and tests the kidneys. Similarly, it says, "And you, Solomon, my son, know the God of your fathers and serve him with a perfect heart, for all hearts seek the Lord" (1 Chronicles 28:9)…

Midrash Tehillim 14:1

עם חלב כליות חטה, the choicest fat of the wheat kernels. [The word כליות can obviously not refer to kidneys, seeing that wheat does not have kidneys. The author therefore searches for other pertinent meanings which can be applied to Moses’ hyperbole here. Ed.] In Samuel II 13,39 we find the line ותכל דוד המלך לצאת אל אבשלום, which the author understands as “King David now pined, had an overpowering desire for Avshalom,” since he had by now gotten over the death of his son Amnon (whom Avshalom had murdered). In Psalms 84,3 we read כלתה נפשי, “my soul yearns for……

Rashbam on Deuteronomy 32:14:4

“Speak to the children of Israel, and say to them: Any man, when he has a discharge from his flesh, his discharge is impure” (Leviticus 15:2).
“Speak to the children of Israel, and say to them: Any man, when he has a discharge from his flesh…” That is what is written: “Remember your Creator in the days of your youth” (Ecclesiastes 12:1). We learned, Akavya ben Mahalalel says: Consider three matters and you will not come to sin: Know from where you came – from a putrid drop; where you are going – to dust, maggots, and worms…

Vayikra Rabbah 18:1

“From wine and intoxicating drink he shall abstain: vinegar of wine and vinegar of intoxicating drink he shall not drink; he shall not drink anything in which grapes were soaked, and grapes, fresh or dried, he shall not eat” (Numbers 6:3).
“From wine and intoxicating drink…” – that is what is written: “Woe, the valiant to drink wine…who vindicate the wicked following a bribe…” (Isaiah 5:22–23). There it is written: “Happy are you, land, that your king is a free man” (Ecclesiastes 10:17)…

Bamidbar Rabbah 10:8

§ They say in the West, Eretz Yisrael: Any injury that renders an animal unfit for consumption when occurring in the lung is kosher when occurring in the kidney. For example, a perforation renders an animal unfit when occurring in the lung (see 42a), but the animal is kosher if it occurs in the kidney. And it follows that all the more so, where an animal is kosher despite an injury in the lung, it will remain kosher despite a similar injury in the kidney.…

Chullin 55b:3-4

The Sages initially assumed that everyone agrees that there is no entity born with one kidney, and only one kidney is found because this offering became lacking a kidney only after birth. If so, let us say that they disagree about this: That one Sage, the tanna of the first baraita, holds that a lack of an internal limb is considered a lack, and one Sage, the tanna of the second baraita, holds that a lack of an internal limb is not considered a lack…

Bekhorot 39a:19-20

AND THOU SHALT TAKE. Bullock and goats do not have a fat tail (alyah).

Ibn Ezra on Exodus 29:13:1

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