One verse

Srimad Bhagavatam 11.17.27

11.17.27

आचार्यं मां विजानीयान्नावमन्येत कर्हिचित् । न मर्त्यबुद्ध्यासूयेत सर्वदेवमयो गुरु: ॥ २७ ॥

ācāryaṁ māṁ vijānīyān navamanyeta karhicit na martya-buddhyāsūyeta sarva-deva-mayo guruḥ

ācāryam
the spiritual master
mām
Myself
vijānīyāt
one should know
na avamanyeta
one should never disrespect
karhicit
at any time
na
never
martya-buddhyā
with the idea of his being an ordinary man
asūyeta
one should be envious
sarva-deva
of all demigods
mayaḥ
representative
guruḥ
the spiritual master

One should know the ācārya as Myself and never disrespect him in any way. One should not envy him, thinking him an ordinary man, for he is the representative of all the demigods.