“What to speak of others, even Krishna, the son of Nanda Maharaja, personally descends to taste the nectar of love of Godhead in the form of the chanting of Hare Krishna.” (Sri Caitanya-caritamrta, Antya-lila, 3.265 Purport)
In the Adi Purana Krishna tells Arjuna: “Anyone who is engaged in chanting My transcendental name must be considered to be always associating with Me. And I may tell you frankly that for such a devotee I become easily purchased.” (Nectar of Devotion, 12)