He (Vidura) accepted Krsna as his worshipable Lord and followed His instructions wholeheartedly

Expressions researched:
"He accepted Kṛṣṇa as his worshipable Lord and followed His instructions wholeheartedly"

Srimad-Bhagavatam

SB Canto 3

The history of Vidura is that he was born of a śūdra mother, but his seminal father was Vyāsadeva; thus he was not less than Vyāsadeva in any respect. Since he was born of a great father, who was supposed to be an incarnation of Nārāyaṇa and who composed all the Vedic literatures, Vidura was also a great personality. He accepted Kṛṣṇa as his worshipable Lord and followed His instructions wholeheartedly.

SB 3.20.3, Translation and Purport

Vidura was born from the body of Veda-vyāsa and was not less than he. Thus he accepted the lotus feet of Kṛṣṇa wholeheartedly and was attached to His devotees.

The history of Vidura is that he was born of a śūdra mother, but his seminal father was Vyāsadeva; thus he was not less than Vyāsadeva in any respect. Since he was born of a great father, who was supposed to be an incarnation of Nārāyaṇa and who composed all the Vedic literatures, Vidura was also a great personality. He accepted Kṛṣṇa as his worshipable Lord and followed His instructions wholeheartedly.