Chapter 4 · Knowledge and Renunciation of Action · Krishna said
Bhagavad Gita 4.5 — Many births
श्रीभगवानुवाच। बहूनि मे व्यतीतानि जन्मानि तव चार्जुन। तान्यहं वेद सर्वाणि न त्वं वेत्थ परन्तप ॥
śrībhagavānuvāca | bahūni me vyatītāni janmāni tava cārjuna | tānyahaṃ veda sarvāṇi na tvaṃ vettha parantapa ||
Meaning
Krishna said: Arjuna, both you and I have passed through many births. I know them all, but you do not know them.