Bhagavad Gita, Chapter 17, Verse 24

तस्मादोमित्युदाहृत्य यज्ञदानतपःक्रियाः । प्रवर्तन्ते विधानोक्ताः सततं ब्रह्मवादिनाम्

tasmādomityudāhṛtya yajñadānatapaḥkriyāḥ | pravartante vidhānoktāḥ satataṃ brahmavādinām

Translation

Therefore, with the utterance of 'Oṃ,' are the acts of sacrifice, gift and austerity, as enjoined in the scriptures, always begun by the students of Brahman.

— Alladi Mahadeva Sastri

Word meanings

tasmāt
therefore
oṃ
Aum
iti
thus
udāhṛtya
having said
yajñadānatapaḥkriyāḥ
of sacrifice, and, of gift, and, of austerity, and, acts
pravartante
go forth
vidhānoktāḥ
by the rule, said
satatam
always
brahmavādinām
of Brahman-declarers

Śaṅkarācārya's commentary

Acts of sacrifice: acts in the form of sacrifice, etc.