Bhagavad Gita 10.14 Chapter 10, Verse 14

सर्वमेतदृतं मन्ये यन्मां वदसि केशव ।
न हि ते भगवन् व्यक्तिं विदुर्देवा न दानवाः ॥१०.१४॥

sarvametadṛtaṃ manye yanmāṃ vadasi keśava
na hi te bhagavan vyaktiṃ vidurdevā na dānavāḥ

Meaning

O Keshava, I accept as true all that you tell me. Truly, O Lord, neither the gods nor the demons know your real nature.

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 10.14 (Chapter 10, The Yoga of Divine Glories (Vibhuti Yoga), Verse 14)