Bhagavad Gita Chapter 4 Verse 5
भगवद् गीता अध्याय 4 श्लोक 5

श्री भगवानुवाच
बहूनि मे व्यतीतानि जन्मानि तव चार्जुन।
तान्यहं वेद सर्वाणि न त्वं वेत्थ परन्तप।।4.5।।



हिंदी अनुवाद - स्वामी रामसुख दास जी ( भगवद् गीता 4.5)
।।4.5।।श्रीभगवान् बोले  हे परन्तप अर्जुन मेरे और तेरे बहुतसे जन्म हो चुके हैं। उन सबको मैं जानता हूँ पर तू नहीं जानता।


Shri Vaishnava Sampradaya - Commentary

Lord Krishna declaration of: many births have past for you and for Me  is  a
definite  affirmation  of  the  reality  of  reincarnation  for  Arjuna  and
confirmation of the avatars or incarnations of  the  Supreme  Lord  Krishna.
What He is confirming  is  that  His  present  incarnation  is  as  real  as
Arjunas present life reincarnation and that the  ones  from  the  past  are
real as well,  subtly  implying  that  there  is  a  fundamental  difference
between them.  The nature of  the  avatars,  how  they  manifest  and  their
purpose for incarnating is given next.