Bhagavad Gita, Chapter 17, Verse 14

देवद्विजगुरुप्राज्ञपूजनं शौचमार्जवम् । ब्रह्मचर्यमहिंसा च शारीरं तप उच्यते

devadvijaguruprājñapūjanaṃ śaucamārjavam | brahmacaryamahiṃsā ca śārīraṃ tapa ucyate

Translation

Worshipping the Gods, the twice-born, teachers and wise men — purity, straightforwardness, continence, and abstinence from injury are termed the bodily austerity.

— Alladi Mahadeva Sastri

Word meanings

devadvijaguruprājñapūjanam

of the Gods, and, of the twice-born, and, of the gurus, and, of the wise, and, worship

śaucam

purity

ārjavam

rectitude

brahmacaryam

continence

ahiṃsā

harmlessness

ca

and

śārīram

bodily

tapaḥ

austerity

ucyate

is called

Śaṅkarācārya's commentary

The bodily austerity: that which is accomplished by the body, i.e., in which the body is the chief of all factors of action — the doer, etc. — of which the Lord will speak in xviii.15.