स्वयमेवात्मनाऽत्मानं वेत्थ त्वं पुरुषोत्तम। भूतभावन भूतेश देवदेव जगत्पते
swayam evātmanātmānaṁ vettha tvaṁ puruṣhottama bhūta-bhāvana bhūteśha deva-deva jagat-pate
You alone know Yourself, by the power of Your Self; You are the Supreme Spirit, the Source and Master of all being, the Lord of Lords, the Ruler of the Universe.
Translated by Shri Purohit Swami
Verily, Thou Thyself knowest Thyself by Thyself, O Supreme Person, O source and Lord of all beings, O God of gods, O ruler of the world!
Translated by Swami Sivananda
Word meanings (from the gita/gita dataset)
swayam—yourself; eva—indeed; ātmanā—by yourself; ātmānam—yourself; vettha—know; tvam—you; puruṣha-uttama—the Supreme Personality; bhūta-bhāvana—the Creator of all beings; bhūta-īśha—the Lord of everything; deva-deva—the God of gods; jagat-pate—the Lord of the universe