815 pārthasārathyanirataḥ
devoted to the charioteer's role for Arjuna
M.B Bhīṣmaparva 21 Kṛṣṇa takes the role of charioteer (sārathi) for Arjuna as a deliberate choice—the Supreme Being in the position of servant to his devotee; this is held up across the tradition as the highest demonstration of grace.
817 pāṇḍavadūtyakṛt
who acted as the Pāṇḍavas' ambassador
818 vidurātithyasantuṣṭaḥ
deeply satisfied by Vidura's hospitality
M.B Udyogaparva 89-90 During the peace embassy, Kṛṣṇa refuses Duryodhana's lavish hospitality and dines instead at Vidura's humble home; this single act of preference revealed that Kṛṣṇa values devotion (Vidura's) over power.
819 kuntīsantoṣadāyakaḥ
who gave Kuntī consolation and joy
M.B Udyogaparva 83-84 Kṛṣṇa privately visits Kuntī during the peace embassy; he listens to her grief, consoles her, and brings her news of her sons; S.B.G 10.71 narrates Kṛṣṇa's deep regard for Kuntī as among his most devoted relatives.