Bhagavad Gītā Chapter 17, Verse 24: Krishna to Arjuna — Śraddhātraya-Vibhāga-Yoga

Bhāṣyakāra purports

• Śaṅkaraadvaita

  Because Om (pranava) is the supreme indicator of nirguna Brahman, the scripturally enjoined rites of yajna (sacrifice), dana (giving), and tapas (austerity) of brahma-vadins (those who speak and seek Brahman) always commence after uttering Om. Shankara's bhashya is terse: the verb 'udahriya' (having uttered) frames Om as the indispensable upakrama (opening act) that orients all Vedic action toward the non-dual ground. Without this invocation the acts remain merely worldly; with it they point inward toward Brahman-realization as their true telos.

• Rāmānujaviśiṣṭādvaita

  Ramanuja reads brahma-vadins as the tri-varna (three twice-born varnas) who are veda-vadins — those whose entire life is structured by Vedic injunction. He notes that the Vedas themselves begin with Om, so uttering Om before yajna-dana-tapas enacts the same word-anvaya (syntactic alignment) that links the performer to Bhagavan who is the inner life of all Vedic utterance. For Ramanuja this is kainkarya (loving service): the ritualist aligns his act with the Lord's own self-disclosure in shruti, making every sacrifice an act of upasana (meditative devotion) rather than mere karma.

• Madhvadvaita

  *Om* is the sonic body of *Viṣṇu*-*Hari*, the one *svatantra* (independently real, self-sufficient) Lord on whom all *paratantra* (eternally dependent) *jīva*s and matter rest. *Tasmāt*—because of this real ontological subordination—the *brahma-vādinaḥ*, those who speak of Brahman as *Hari* alone, prefix every act of *yajña* (sacrifice), *dāna* (gift), and *tapas* (austerity) with *om ity udāhṛtya*: the utterance is not a ritual formality but an explicit acknowledgment of *bheda* (real distinction) between the worshipper and the worshipped. The *vidhānoktāḥ kriyāḥ*—acts enjoined by scriptural prescription—acquire their validity only when initiated under *Om*, because it is *Om* that orients the action toward *Hari* as its sole proper recipient and fruit-giver. Karma performed without this prefix lacks the directedness that transforms *paratantra* action into *bhakti* (devotion as ontological subordination). The *satatam*—'always', 'without intermission'—registers that *taratamya* (graded ontological hierarchy) governs every moment of the qualified agent's practice: no act exits the *pañca-bheda* (five-fold real distinction: Lord–jīva, Lord–matter, jīva–jīva, jīva–matter, matter–matter) order, and *Om* names that order's apex at the start of each rite.

• Vallabhaśuddhādvaita

  Vallabha's commentary is spare — 'spastam' (self-evident) — but his Shuddhadvaita frame fills it decisively: Om is the sound-form of Krishna himself, not an abstract Brahman-pointer. When the brahma-vadin utters Om before yajna, he enters Krishna's own lila-space; the act is no longer ritual obligation but prasada-reception, a gift Krishna initiates and the devotee completes. The three acts — yajna, dana, tapas — become three modalities of pushti (nourishment by divine grace) rather than independent human achievements.

• Śrīdharabhakti

  Shridhara reads this verse as the opening of a four-verse sequence (17.24-27) that will demonstrate the excellence of Om, Tat, and Sat in turn. His key gloss: when acts are done with the Om-invocation, they acquire saguna excellence — 'saguna bhavanti' — meaning even an incomplete rite (anga-vaikayla) is elevated and perfected by the prefixed pranava. The brahma-vadins are the veda-vadins whose constant practice (satatam) is underwritten by this sound. For Shridhara the devotional import is that no act offered with Om is wasted or defective; divine presence, invoked by the name, makes it whole.

• Madhusūdanaadvaita-bhakti

  Madhusudan Sarasvati sets this verse as the first of four that collectively explain the composite Brahman-indicator Om-Tat-Sat, analogous to how the three syllables A-U-M each require explanation before the full pranava is understood. His distinctive synthesis: Om is already well-known in shruti as 'Brahmanaama' (the name of Brahman), and merely uttering one component of Om removes ritual defect — 'yasyaikavayava-ucharanadapyavaigunyam' — so uttering the complete Om ensures perfect vaigunyarahitya (freedom from deficiency). This is the highest stuti (praise) of Om: it is simultaneously the jnana-marker of nirguna Brahman (Advaita) and the loving invocation of the personal Lord (bhakti), and both registers are active every time a brahma-vadin opens his lips in practice.