"Om Tat Sat" — this is held to be the threefold designation of Brahman. By it the brahmins, the Vedas, and the sacrifices were ordained of old.
ॐतत्सदिति निर्देशो ब्रह्मणस्त्रिविधः स्मृतः | ब्राह्मणास्तेन वेदाश्च यज्ञाश्च विहिताः पुरा ||१७-२३||
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The Bhagavad Gita, translated and commentated by S. Radhakrishnan, is one of the most scholarly and accessible English renderings of Hinduism's most beloved scripture — the dialogue between Arjuna and Lord Krishna on the battlefield of Kurukshetra. Radhakrishnan, philosopher and statesman, brings both rigorous intellectual insight and genuine spiritual depth to his translation and notes. This edition is treasured for its ability to illuminate the Gita's universal spiritual teaching across cultural and philosophical boundaries.
Same theme, different voices
The yogi who, having attained unity, worships me dwelling in all beings, remains in me, regardless of his way of life.
One cannot be truly religious unless they have equal reverence and regard for all other religions.
He can serve God Almighty only when he cuts off all his selfish interests relating either to this world or to the next, and worships God absolutely for His sake alone, inasmuch as whoever worships God for anything's sake worships himself and not God.