Śrīmad-Bhāgavatam · Text 3.15.47
Who is speaking and story frame
तं त्वां विदाम भगवन् परमात्मतत्त्वं
सत्त्वेन सम्प्रति रतिं रचयन्तमेषाम् ।
यत्तेऽनुतापविदितैर्दृढभक्तियोगै-
रुद्ग्रन्थयो हृदि विदुर्मुनयो विरागा: ॥ ४७ ॥
taṁ tvāṁ vidāma bhagavan param ātma-tattvaṁ
sattvena samprati ratiṁ racayantam eṣām
yat te ’nutāpa-viditair dṛḍha-bhakti-yogair
udgranthayo hṛdi vidur munayo virāgāḥ
We know that You are the Supreme Absolute Truth, the Personality of Godhead, who manifests His transcendental form in the uncontaminated mode of pure goodness. This transcendental, eternal form of Your personality can be understood only by Your mercy, through unflinching devotional service, by great sages whose hearts have been purified in the devotional way.
Read Śrīla Prabhupāda's purport on Vedabase.io