最終更新: 2026-06-29
ユダヤ教で「落とし物を自分のものにすること」は罪ですか？
簡単な答え
はい、ユダヤ教では「落とし物を自分のものにすること」は罪とされています。
IsItASin · 最終更新: 2026-06-29
はい、ユダヤ教では「落とし物を自分のものにすること」は罪とされています。 Deuteronomy 22:1-3 — 'You shall restore it to him... you may not ignore it.'
ユダヤ教が「落とし物を自分のものにすること」について教えること
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ユダヤ教が「落とし物を自分のものにすること」について教えること
詳細な回答（英語） — 以下の詳細な分析は英語で提供されています。 英語の完全版を読む →
Judaism has the most developed lost-property law in the ancient world — two chapters of Bava Metzia, in fact. The Torah command is hashavat aveidah, returning the lost (Deuteronomy 22:1-3), and the rabbis derived its limits precisely: you must pick up a lost object if the owner would want it back, announce it publicly, and care for it meanwhile (feed the animal, protect the garment). The famous marker test: an object with identifying signs (simanim) must be returned on proof, because the owner has not yet despaired (yi'ush); scattered coins with no signs may be kept once the owner has certainly despaired. Even then, the pious precedent (middat chasidut) is to go beyond the law. Maimonides rules that one who returns lost property fulfills a positive commandment, and one who ignores it transgresses two: 'you shall not ignore it' and 'you shall restore it.' The modern application runs through the same channels — a found phone has simanim by definition; a found envelope of cash outside a shop likely has an owner who will retrace steps. The tradition's teaching posture is that God pairs losers with finders deliberately.
トーラー／タルムード参考文献
- Deuteronomy 22:1-3 — 'You shall restore it to him... you may not ignore it.'
- Exodus 23:4 — 'If you meet your enemy's ox or his donkey going astray, you shall bring it back to him.'
- Talmud, Bava Metzia 21b-24b — Lost property must be announced; an object with identifying marks is never owners' despair (yi'ush) until the owner despairs.
あなたがすべきこと
以下の詳細な分析は英語で提供されています。
- Make a real effort to find the owner — turn items in to police, lost-and-found, or venue staff.
- For cash with no identifying marks, a good default is to donate it after a reasonable search.
- Jewish: Know the mitzvah of hashavat aveidah — pick up, announce, and restore; going beyond the letter is praiseworthy.
- All: If you kept a find you should have returned, restitution to the owner (or charity if untraceable) clears the conscience.
Repentance: Teshuvah
The Talmud teaches that teshuvah was created before the world itself — Hashem believed in your return before you were born. The gates of return are open now.
Begin Your Teshuvah — The Gates Are Open →よくある質問
以下の詳細な分析は英語で提供されています。
What if there is no way to find the owner?
When no owner can be traced, the duty of return ends.
When no owner can be traced, the duty of return ends. Judaism permits keeping objects after certain despair (yi'ush) but praises generosity.
Is it stealing if I found it and nobody saw?
Every tradition answers yes — visibility is irrelevant to God.
Every tradition answers yes — visibility is irrelevant to God. The Catechism lists retaining found objects as theft (2409). The Talmud treats the finder's privacy as precisely where character is tested.
What about finding money in a store or parking lot?
Location matters because owners retrace steps: cash near a register or a phone in a lot usually has a findable owner — hand it to staff or security.
Location matters because owners retrace steps: cash near a register or a phone in a lot usually has a findable owner — hand it to staff or security. Judaism's simanim logic treats phones and wallets as always-identifiable. Traditions agree: effort before keeping.
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