Bhagavad Gita 10.2
न मे विदुः सुरगणाः प्रभवं न महर्षयः। अहमादिर्हि देवानां महर्षीणां च सर्वशः॥
na me viduḥ sura-gaṇāḥ prabhavaṁ na maharṣhayaḥ aham ādir hi devānāṁ maharṣhīṇāṁ cha sarvaśhaḥ
Translation
The multitude of the Shining Ones, or the great Rishis, know not my forthcoming, for I am the beginning of all the Shining Ones and the great Rishis.
What it means
Neither the hosts of gods nor the great sages know My origin, for I am the beginning of the gods and the great sages. The source cannot be derived from what flows from it. Every witness is downstream.
Try this today
The source precedes its knowers: what gives everything its start cannot be known from downstream.
Something to reflect on
What upstream source am I trying to know from downstream evidence only?
Read it in Yathora