redemption

Distinctions

pidyon (פדיון), pedus (פדות), podeh (פודה)

Root פ-ד-ה. The Vilna Gaon, on the two parallel redemptions of Yetzias Mitzrayim: the pidyon of the night of Pesach was an exchange, Hashem trading the Egyptian firstborn for the Jewish firstborn; so pidyon is salvation that comes through a swap. Rabbi Chaim of Brisk, in cheftza-gavra terms: pidyon looks at the object redeemed and marks a change in the object's own status. Chatam Sofer: pidyon is negative redemption, simply being saved from the calamity at hand. Rabbi Menachem Mendel of Kosov: temporary relief from what ails one. Malbim: pidyon is the bare fact of salvation. Rabbi Shmuel Tuvia Stern: pidyon takes something holy and releases it by transferring the holiness onto something else (the redemption of hekdesh); alternatively, pidyon is case-by-case redemption of the individual.

A note on spelling: in Iyov 33:24 the verb is written with an ayin (פדע). Rashi there and Ramban (to Shemos 21:14) treat ayin and heh as interchangeable, so it is the same word. Ibn Janach, Menachem ibn Saruk, and Radak give the ayin form its own entry, implying a separate word; Malbim connects the ayin form to an Arabic word meaning "removal."

geulah (גאולה), goel (גואל)

Root ג-א-ל. The Vilna Gaon: the geulah of Yetzias Mitzrayim was rescue by sheer force, with no remuneration of any kind. Rabbi Chaim of Brisk: geulah looks at the owner and marks a change of ownership. Chatam Sofer: positive redemption, not only saved from something bad but raised above one's circumstances and made greater. Rabbi Menachem Mendel of Kosov: comprehensive, everlasting deliverance. Malbim: geulah is redemption born of closeness between redeemer and redeemed; the kinship is what obliges the redeemer, which is why the avenging relative of Bamidbar 35:19 is the goel hadam, the word goel naming his kinship with the slain. Rabbi Shmuel Tuvia Stern: geulah takes what is profane and shakes off its non-holy associations so it may enter the domain of the holy; alternatively, geulah is mass redemption of the nation at large.

The halachic setting (Vayikra 25:25-55 on fields, houses, and a person sold into slavery; Vayikra 27:9-34 on consecrated animals, houses, and fields) uses both verbs, so the legal usage is not a reliable guide to the nuance; the distinctions above are what separate them.

Rendering guidance

• פדיון with a price in view (pidyon haben, pidyon shevuyim, redeeming hekdesh or a field): "redemption" is conventional, but where the shmuess turns on the exchange, prefer "ransom" or "buying back," or gloss "(a redemption by exchange)."
• גאולה: "redemption" is the settled English; "deliverance" where the sense is rescue by force. When geulah is contrasted with pidyon, let the English show the lift (Chatam Sofer): "not merely rescued but redeemed."
• גואל as the kinsman (goel hadam, the goel of Rus): "redeemer" keeps the kinship sense that Malbim reads into the word; do not write "avenger" alone.
• Trap: English "redemption" absorbs both words. In a passage that names them together (the Vilna Gaon's two redemptions of Pesach night, or a derashah on why one pasuk says podeh and another goel), keep both Hebrew words visible and render pidyon as "ransom/exchange" and geulah as "redemption."
• The Aramaic purkan is the Targum's word for pidyon; see the salvation entry (salvation-yeshuah-teshuah-hatzalah-purkan.md) for that cluster.

Sources

Rabbi Reuven Chaim Klein, "Words of Redemption," What's in a Word?, Ohr Somayach, 20 Iyar 5778 (2018-05-05): raw text in sources/whats-in-a-word/raw/7742-words-of-redemption.md. Primary loci the article cites: Vayikra 25:25-55 and 27:9-34; Bamidbar 35:19 (goel hadam); Iyov 33:24 (פדע) with Rashi there and Ramban to Shemos 21:14; the lexicons of Ibn Janach, Menachem ibn Saruk, and Radak s.v. פדה / פדע.