Philo's allegorical treatise reading Noah's curse on Canaan (Gen. 9:24-27) as a study of sobriety, and of what Scripture really means by 'young' and 'elder.'
On Sobriety continues directly from Philo's earlier discussion of drunkenness, opening with the verse where Noah awakens from his wine and learns what his 'younger son' did to him (Gen. 9:24). Philo first praises sobriety as a benefit to both body and soul, then pivots to his real project: showing that when Scripture calls someone 'young' or 'elder,' 'younger son' or 'firstborn,' it is never describing chronological age but a condition of the soul. Ishmael, though older than Isaac, is called a 'child' because he is a sophist; Abraham, though not the longest-lived of his line, is the only patriarch called 'elder' because his reason is mature; Jacob is 'younger' than Esau in birth but senior in power because zeal for the good arrives late in life.
The treatise's central puzzle is why Noah curses not Ham, who actually saw his father's nakedness and mocked him, but Ham's son Canaan, who had done nothing. Philo resolves this through a distinction between disposition (a settled state, like a craftsman's dormant skill) and motion (that skill actively exercised). Ham, whose name he glosses as 'heat,' represents vice at rest; Canaan, glossed as 'tossing' or 'agitation,' represents that same vice once set in motion and acted out. Since law punishes only wrongdoing that is active, not latent vice, the curse falls on the 'grandson' who embodies vice in action, illustrating a wider principle Philo draws from Exodus 20:5 and the Cain narrative ('you have sinned; be still').
The work closes on Noah's blessings of Shem and Japheth. Shem, root of nobility, receives the extraordinary honor of having God called 'the God of Shem' personally; Japheth is blessed with 'breadth' - the capacity to enjoy goods of soul, body, and external fortune together - and is urged to make his home 'in the tents of Shem,' which Philo reads as counsel to subordinate bodily and external goods to the single good of the soul. The whole piece exemplifies Philo's method: treating personal names and genealogical details in Genesis as ciphers for psychological and ethical states.
“It is agreed that sobriety benefits not only souls but bodies as well.”
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“"Young," then, is the character not yet able to shepherd together with its legitimate brothers”
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“For just as the power of fire lies quiet in the absence of fuel, but blazes up in its presence, so too all the powers of the soul that look toward virtue or vice are quenched by lack of opportunity”
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“For Ham is interpreted "heat," and Canaan "tossing" or "agitation."”
— On Sobriety · read this chapter →
“for the wise person is a friend to God rather than a slave.”
— On Sobriety · read this chapter →
It is an allegorical commentary on Genesis 9:24-27, the passage where Noah, sober after his wine, curses his grandson Canaan and blesses Shem and Japheth. Philo uses it to argue that Scripture's terms 'young' and 'elder' describe a soul's moral maturity, not its literal age, and to explain why the curse falls on Canaan rather than on Ham, who actually sinned.
Philo distinguishes disposition (a settled, inactive state) from motion (that state acted out), reading Ham's name as 'heat' - vice at rest - and Canaan's as 'agitation' - that same vice put into action. Because law punishes only active wrongdoing, the curse lands on Canaan, who represents vice in motion, even though the underlying vice originated with Ham.
Philo notes Abraham was not the longest-lived of his ancestors, yet Scripture alone calls him 'elder' (Gen. 24:1). He argues this is because Abraham's reason was mature and well disposed in every matter, so 'elder' in Scripture marks the soundness of a soul's judgment, not years lived.
He reads Manasseh as meaning 'out of forgetfulness' (i.e., remembrance regained) and Ephraim as 'fruit-bearing,' a fitting name for memory. Because memories arise later in life than the twin failings of forgetting and remembering, Manasseh the elder is set on the left hand and Ephraim the younger on the right in Joseph's blessing.
Philo says Shem alone is honored by having God called personally 'the God of Shem,' which he takes as the reward of a soul that regards the noble as the only good. This makes Shem, in Philo's allegory, almost equal in honor to the cosmos itself and a 'friend' rather than mere subject of God.
He treats sobriety as beneficial to both body and soul, sharpening perception and preventing collapse, but his greater interest is the moment Noah 'awoke from his wine and knew' what had been done to him - sobriety as the mind's return to clear moral judgment after a lapse.
Allegorical Interpretation I · Allegorical Interpretation II · Allegorical Interpretation III · Every Good Man is Free · Flaccus · On Abraham · On Dreams · On Drunkenness · On Flight and Finding · On Husbandry · On Joseph · On Mating / Preliminary Studies