Śrīmad-Bhāgavatam · Text 11.18.39
Who is speaking and story frame
तावत् परिचरेद् भक्त: श्रद्धावाननसूयक: ।
यावद् ब्रह्म विजानीयान्मामेव गुरुमादृत: ॥ ३९ ॥
tāvat paricared bhaktaḥ
śraddhāvān anasūyakaḥ
yāvad brahma vijānīyān
mām eva gurum ādṛtaḥ
Until a devotee has clearly realized spiritual knowledge, he should continue with great faith and respect and without envy to render personal service to the guru, who is nondifferent from Me.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.