Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 55
Sanskrit:
दुष्प्रज्ञा अविदित्वैवमवजानन्त्यसूयव: ।गुरुं मां विप्रमात्मानमर्चादाविज्यदृष्टय: ॥ ५५ ॥
ITRANS:
duṣprajñā aviditvaivamavajānanty asūyavaḥguruṁ māṁ vipram ātmānamarcādāv ijya-dṛṣṭayaḥ
Translation:
Ignorant of this truth, foolish people neglect and enviously offend a learned brāhmaṇa, who, being nondifferent from Me, is their spiritual master and very self. They consider worshipable only such obvious manifestations of divinity as My Deity form.