Sanskrit
महर्षीणां भृगुरहं गिरामस्म्येकमक्षरम् । यज्ञानां जपयज्ञोऽस्मि स्थावराणां हिमालयः ॥ २५ ॥
maharṣīṇāṃ bhṛgur ahaṃ girām asmy ekam akṣaram yajñānāṃ japayajño'smi sthāvarāṇāṃ himālayaḥ
Translation
Of the great Rishis Bhṛigu; of speech I am the one syllable; of sacrifices I am the sacrifice of silent repetitions; of immovable things the Himâlaya.
Annie Besant · The Bhagavad-Gita, translated by Annie Besant (4th ed., 1922) — Wikisource · Public Domain
Explanation
Bhrigu among the great Rishis, Om among speech (“the one syllable”), japa among sacrifices, the Himalaya among immovable things. Om as the single syllable is worth pausing on — it’s the closest this list gets to naming a purely symbolic entity as a vibhuti, a thread verse 33 picks up again with the letter A.