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The interpretation timeline

Tob 6:2

How this passage has been read — the sources, oldest to newest.

From the early Church Fathers to now.

Tob 6:2 · Douay-Rheims
“And he went out to wash his feet, and behold a monstrous fish came up to devour him.”
Post-Reformation c. 1650 – 1900
1849
A.D.
George Leo Haydock Catholic
1774–1849
“Feet. Greek, “to bathe.” — Fish. The learned are of opinion that this was the fish which Pliny calls callyonymus, ([Natural History?] l. xxii. ch. 7.) the gall of which is of sovereign virtue to remove white specks that grow over the eyes. (Challoner) — Other fishes have the like virtue; and as the aforesaid has no scales, and is not above a foot long, it could not be lawfully eaten by the Israelites, nor could it suffice for ten days’ provision, ver. 6. (Leviticus xi. 10.) Others, therefore, prefer (Calmet) the sea-calf, (Brado) the hippopotamus, (Grotius) the crocodile, (Denis the Carthusian) whale, (Theophylactus) sturgeon, or silurus. (Bochart, Anim. iv. 15.) — But there are great difficulties with respect to all these; and Fran. George adopts the sentiment of the Rabbins in favour of the pike, which seems the least objectionable, as it has scales, gills, and cannot live long out of water, ver. 4. It grows to a great size in the Tigris, and its gall is good for the eyes. (Calmet)”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.