arjunaḥ uvāca—Arjuna said; aparam—junior; bhavataḥ—Your; janma—birth; param—superior; janma—birth; vivasvataḥ—of the sun-god; katham—how; etat—this; vijānīyām—shall I understand; tvam—You; ādau—in the beginning; proktavān—instructed; iti—thus.
Arjuna said: The sun-god Vivasvān is senior by birth to You. How am I to understand that in the beginning You instructed this science to him?
śrī bhagavān uvāca—the Personality of Godhead said; bahūni—many; me—of Mine; vyatītāni—have passed; janmāni—births; tava—of yours; ca—and also; arjuna—O Arjuna; tāni—all those; aham—I; veda—do know; sarvāṇi—all; na—not; tvam—yourself; vettha—know; parantapa—O subduer of the enemy.
The Blessed Lord said: Many, many births both you and I have passed. I can remember all of them, but you cannot, O subduer of the enemy!
ajaḥ—unborn; api—although; san—being so; avyaya—without deterioration; ātmā—body; bhūtānām—all those who are born; īśvaraḥ—the Supreme Lord; api—although; san—being so; prakṛtim—transcendental form; svām—of Myself; adhiṣṭhāya—being so situated; sambhavāmi—I do incarnate; ātma-māyayā—by My internal energy.