מתני׳ אחד דיני ממונות ואחד דיני נפשות בדרישה ובחקירה שנאמר (ויקרא כד, כב) משפט אחד יהיה לכם מה בין דיני ממונות לדיני נפשות דיני ממונות בשלשה ודיני נפשות בעשרים ושלשה דיני ממונות פותחין בין לזכות בין לחובה ודיני נפשות פותחין לזכות ואין פותחין לחובה דיני ממונות מטין על פי אחד בין לזכות בין לחובה ודיני נפשות מטין על פי אחד לזכות ועל פי שנים לחובה דיני ממונות מחזירין בין לזכות בין לחובה דיני נפשות מחזירין לזכות ואין מחזירין לחובה דיני ממונות הכל מלמדין זכות וחובה דיני נפשות הכל מלמדין זכות ואין הכל מלמדין חובה דיני ממונות המלמד חובה מלמד זכות והמלמד זכות מלמד חובה דיני נפשות המלמד חובה מלמד זכות אבל המלמד זכות אין יכול לחזור וללמד חובה דיני ממונות דנין ביום וגומרין בלילה דיני נפשות דנין ביום וגומרין ביום דיני ממונות גומרין בו ביום בין לזכות בין לחובה דיני נפשות גומרין בו ביום לזכות וביום שלאחריו לחובה לפיכך אין דנין לא בערב שבת ולא בערב יום טוב דיני ממונות הטמאות והטהרות מתחילין מן הגדול דיני נפשות מתחילין מן הצד הכל כשרין לדון דיני ממונות ואין הכל כשרין לדון דיני נפשות אלא כהנים לוים וישראלים המשיאין לכהונה:
MISHNA: Both cases of monetary law and cases of capital law are equal with regard to the requirement for inquiry and interrogation of the witnesses, as it is stated: “You shall have one manner of law” (Leviticus 24:22), meaning that all legal procedures must be uniform. Having stated the essential similarity between the two, the mishna enumerates the differences between them. What are the differences between cases of monetary law and cases of capital law? Cases of monetary law are judged by a court of three judges, and cases of capital law are judged by a court of twenty-three judges. In cases of monetary law, the court opens the deliberations either with a claim to exempt the accused, or with a claim to find him liable. And in cases of capital law, the court opens the deliberations with a claim to acquit the accused, but it does not open the deliberations with a claim to find him liable. In cases of monetary law, the court directs, i.e., issues, the ruling based on a majority of one judge, either to exempt, or to find liable. But in cases of capital law, the court directs the judgment based on a majority of one judge to acquit and based on a majority of two judges to find liable. In cases of monetary law, the court brings the accused back to be judged again if new evidence arises, either with a claim to exempt the accused, or with a claim to find him liable. In cases of capital law, the court brings the accused back to be judged again with a claim to acquit him, but the court does not bring him back to be judged with a claim to find him liable. In cases of monetary law, all those present at the trial may teach a reason to exempt a litigant or to find him liable. In cases of capital law, all those present at the trial may teach a reason to acquit the accused, but not all present may teach a reason to find him liable. Only the judges can teach a reason to find him liable. In cases of monetary law, one who initially teaches a reason to find the accused liable may then teach a reason to exempt him, and one who initially teaches a reason to exempt him may then teach a reason to find him liable. In cases of capital law, one who initially teaches a reason to find him liable may then teach a reason to acquit, but one who initially teaches a reason to acquit may not return and teach a reason to find him liable. In cases of monetary law, the court judges during the daytime, and may conclude the deliberations and issue the ruling even at night. In cases of capital law, the court judges during the daytime, and concludes the deliberations and issues the ruling only in the daytime. In cases of monetary law, the court may conclude the deliberations and issue the ruling even on that same day, whether to exempt the accused or to find him liable. In cases of capital law, the court may conclude the deliberations and issue the ruling even on that same day to acquit the accused, but must wait until the following day to find him liable. Therefore, since capital cases might continue for two days, the court does not judge cases of capital law on certain days, neither on the eve of Shabbat nor the eve of a Festival. In cases of monetary law, and likewise in the cases of ritual impurity and purity, the judges commence expressing their opinions from the greatest of the judges. In cases of capital law, the judges commence issuing their opinions from the side, where the least significant judges sit. All are fit to judge cases of monetary law. But not all are fit to judge cases of capital law; only priests, Levites, and Israelites who are of sufficiently fit lineage to marry their daughters to members of the priesthood are fit to judge cases of capital law.
מתני׳ כיצד מאיימין את העדים על עידי נפשות היו מכניסין אותן ומאיימין עליהן שמא תאמרו מאומד ומשמועה עד מפי עד ומפי אדם נאמן שמא אי אתם יודעין שסופנו לבדוק אתכם בדרישה ובחקירה הוו יודעין שלא כדיני ממונות דיני נפשות דיני ממונות אדם נותן ממון ומתכפר לו דיני נפשות דמו ודם זרעותיו תלויין בו עד סוף העולם שכן מצינו בקין שהרג את אחיו שנאמר (בראשית ד, י) דמי אחיך צועקים אינו אומר דם אחיך אלא דמי אחיך דמו ודם זרעותיו דבר אחר דמי אחיך שהיה דמו מושלך על העצים ועל האבנים לפיכך נברא אדם יחידי ללמדך שכל המאבד נפש אחת מישראל מעלה עליו הכתוב כאילו איבד עולם מלא וכל המקיים נפש אחת מישראל מעלה עליו הכתוב כאילו קיים עולם מלא ומפני שלום הבריות שלא יאמר אדם לחבירו אבא גדול מאביך ושלא יהו המינים אומרים הרבה רשויות בשמים ולהגיד גדולתו של הקב"ה שאדם טובע כמה מטבעות בחותם אחד כולן דומין זה לזה ומלך מלכי המלכים הקב"ה טבע כל אדם בחותמו של אדם הראשון ואין אחד מהן דומה לחבירו לפיכך כל אחד ואחד חייב לומר בשבילי נברא העולם ושמא תאמרו מה לנו ולצרה הזאת והלא כבר נאמר (ויקרא ה, א) והוא עד או ראה או ידע אם לא יגיד וגו' ושמא תאמרו מה לנו לחוב בדמו של זה והלא כבר נאמר (משלי יא, י) באבוד רשעים רנה:
MISHNA: How does the court intimidate the witnesses in giving testimony for cases of capital law? They would bring the witnesses in and intimidate them by saying to them: Perhaps what you say in your testimony is based on conjecture, or perhaps it is based on a rumor, perhaps it is testimony based on hearsay, e.g., you heard a witness testify to this in a different court, or perhaps it is based on the statement of a trusted person. Perhaps you do not know that ultimately we examine you with inquiry and interrogation, and if you are lying, your lie will be discovered. The court tells them: You should know that cases of capital law are not like cases of monetary law. In cases of monetary law, a person who testifies falsely, causing money to be given to the wrong party, can give the money to the proper owner and his sin is atoned for. In cases of capital law, if one testifies falsely, the blood of the accused and the blood of his offspring that he did not merit to produce are ascribed to the witness’s testimony until eternity. The proof for this is as we found with Cain, who killed his brother, as it is stated concerning him: “The voice of your brother’s blood [demei] cries out to Me from the ground” (Genesis 4:10). The verse does not state: Your brother’s blood [dam], in the singular, but rather: “Your brother’s blood [demei],” in the plural. This serves to teach that the loss of both his brother’s blood and the blood of his brother’s offspring are ascribed to Cain. The mishna notes: Alternatively, the phrase “your brother’s blood [demei],” written in the plural, teaches that that his blood was not gathered in one place but was splattered on the trees and on the stones. The court tells the witnesses: Therefore, Adam the first man was created alone, to teach you that with regard to anyone who destroys one soul from the Jewish people, i.e., kills one Jew, the verse ascribes him blame as if he destroyed an entire world, as Adam was one person, from whom the population of an entire world came forth. And conversely, anyone who sustains one soul from the Jewish people, the verse ascribes him credit as if he sustained an entire world. The mishna cites another reason Adam the first man was created alone: And this was done due to the importance of maintaining peace among people, so that one person will not say to another: My father, i.e., progenitor, is greater than your father. And it was also so that the heretics who believe in multiple gods will not say: There are many authorities in Heaven, and each created a different person. And this serves to tell of the greatness of the Holy One, Blessed be He, as when a person stamps several coins with one seal, they are all similar to each other. But the supreme King of kings, the Holy One, Blessed be He, stamped all people with the seal of Adam the first man, as all of them are his offspring, and not one of them is similar to another. Therefore, since all humanity descends from one person, each and every person is obligated to say: The world was created for me, as one person can be the source of all humanity, and recognize the significance of his actions. The court says to the witnesses: And perhaps you will say: Why would we want this trouble? Perhaps it would be better not to testify at all. But be aware, as is it not already stated: “And he being a witness, whether he has seen or known, if he does not utter it, then he shall bear his iniquity” (Leviticus 5:1)? It is a transgression not to testify when one can do so. And perhaps you will say: Why would we want to be responsible for the blood of this person? But be aware, as is it not already stated: “When the wicked perish, there is song” (Proverbs 11:10)?
סנהדרין נוהגת בארץ ובחוצה לארץ סנהדרין ההורגת אחד בשבוע נקראת חובלנית רבי אליעזר בן עזריה אומר אחד לשבעים שנה רבי טרפון ורבי עקיבא אומרים אילו היינו בסנהדרין לא נהרג אדם מעולם רשב"ג אומר אף הן מרבין שופכי דמים בישראל:
The mishna continues: The mitzva to establish a Sanhedrin with the authority to administer capital punishments is in effect both in Eretz Yisrael and outside Eretz Yisrael. A Sanhedrin that executes a transgressor once in seven years is characterized as a destructive tribunal. Since the Sanhedrin would subject the testimony to exacting scrutiny, it was extremely rare for a defendant to be executed. Rabbi Elazar ben Azarya says: This categorization applies to a Sanhedrin that executes a transgressor once in seventy years. Rabbi Tarfon and Rabbi Akiva say: If we had been members of the Sanhedrin, we would have conducted trials in a manner whereby no person would have ever been executed. Rabban Shimon ben Gamliel says: In adopting that approach, they too would increase the number of murderers among the Jewish people. The death penalty would lose its deterrent value, as all potential murderers would know that no one is ever executed.
רבי טרפון ורבי עקיבא אומרים אילו היינו וכו': היכי הוו עבדי רבי יוחנן ורבי אלעזר דאמרי תרוייהו ראיתם טריפה הרג שלם הרג אמר רב אשי אם תמצא לומר שלם הוה דלמא במקום סייף נקב הוה
The mishna teaches that Rabbi Tarfon and Rabbi Akiva say: If we had been members of the Sanhedrin, we would have conducted the trials in a manner where no person would have ever been executed. The Gemara asks: How would they have acted to spare the accused from execution if witnesses testified that he intentionally committed murder? Rabbi Yoḥanan and Rabbi Elazar both say that they would have asked the witnesses: Did you see whether the accused killed a tereifa, i.e., a person with a condition that would lead to his death within twelve months, or if he killed someone who was intact? The halakhic status of a tereifa is like that of one who is dead, in the sense that one who kills him is not executed. Since no witness can be certain with regard to the victim’s physical condition, they would invalidate any testimony to a murder. Rav Ashi said: Even if you say that they examined him postmortem and he was intact the testimony could be challenged, as perhaps in the place that the sword pierced the victim’s body there was a perforation in one of the organs that renders the person a tereifa, but which was rendered undetectable by the wound caused by the sword.
Maimonides, Sefer ha-Mitzvot (Book of the Commandments): Comment on Negative Commandment 290
It is better and more satisfactory to acquit a thousand guilty persons than to put a single innocent one to death.