Devotees do not ask anything from the Lord in exchange for their service. Even the most desirable liberation is refused by devotees, although offered by the Lord. Thus the Lord becomes a kind of debtor to the devotees, and He can only try to repay the devotees’ service with His ever-enchanting smile. The devotees are ever satisfied by the smiling face of the Lord, and they become enlivened. And by seeing the devotees so enlivened, the Lord Himself is further satisfied. So there is continuous transcendental competition between the Lord and His devotees by such reciprocation of service and acknowledgement.
His Divine Grace A. C. Bhaktivedanta Swami Prabhupada
Srimad-Bhagavatam 3.8.27, Purport

The whole cosmic order is under Me. Under My will it is automatically manifested again and again, and under My will it is annihilated at the end.
Lord Sri Krishna
Bhagavad-gita 9.8

Originally, Krishna’s energy is spiritual, and the energy known as the living entity is also spiritual. However, there is another energy, called illusion, which consists of fruitive activity. That is the Lord’s third potency.
Vishnu Purana 6.7.61

In the material condition, the living entity is sometimes raised to higher planetary systems and material prosperity and sometimes drowned in a hellish situation. His state is exactly like that of a criminal whom a king punishes by submerging him in water and then raising him again from the water.
Sri Chaitanya Mahaprabhu
Sri Chaitanya-charitamrita, Madhya-lila 20.118

The Tenth Canto of Srimad-Bhagavatam reveals the tenth object, the Supreme Personality of Godhead, who is the shelter of all surrendered souls. He is known as Sri Krishna, and He is the ultimate source of all the universes. Let me offer my obeisances unto Him.
Srila Sridhara Swami
Commentary on Srimad-Bhagavatam 10.1.1

You should know Krishna to be the original soul of all living entities. For the benefit of the whole universe, He has, out of His causeless mercy, appeared as an ordinary human being. He has done this by the strength of His own internal potency.
Srila Sukadeva Goswami
Srimad-Bhagavatam 10.14.55

Pure devotional service brings immediate relief from all kinds of material distress. It is the beginning of all auspiciousness. It minimizes the value of liberation. It is rarely achieved, it automatically puts one in transcendental pleasure, and it is the only means to attract Krishna.
Srila Rupa Goswami
Bhakti-rasamrita-sindhu 1.1.17