Srimad Bhagavatam Canto 10, Chapter 01, Text 22

SB 10.1.22

puraiva pumsavadhrto dhara-jvaro
bhavadbhir amsair yadusupajanyatam
sa yavad urvya bharam isvaresvarah
sva-kala-saktya ksapayams cared bhuvi
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
Lord Brahma informed the demigods: Before we submitted our petition to the Lord, He was already aware of the distress on earth. Consequently, for as long as the Lord moves on earth to diminish its burden by His own potency in the form of time, all of you demigods should appear through plenary portions as sons and grandsons in the family of the Yadus.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
As stated in the Brahma-samhita (5.39):
ramadi-murtisu kala-niyamena tisthan
nanavataram akarod bhuvanesu kintu
krsnah svayam samabhavat paramah puman yo
govindam adi-purusam tam aham bhajami
“I worship the Supreme Personality of Godhead, Govinda, who is always situated in various incarnations such as Rama, Nrsimha and many sub-incarnations as well, but who is the original Personality of Godhead, known as Krsna, and who incarnates personally also.”
In this verse from Srimad-Bhagavatam we find the words puraiva pumsavadhrto dhara-jvarah. The word pumsa refers to Krsna, who was already aware of how the whole world was suffering because of the increase of demons. Without reference to the supreme power of the Personality of Godhead, demons assert themselves to be independent kings and presidents, and thus they create a disturbance by increasing their military power. When such disturbances are very prominent, Krsna appears. At present also, various demoniac states all over the world are increasing their military power in many ways, and the whole situation has become distressful. Therefore Krsna has appeared by His name, in the Hare Krsna movement, which will certainly diminish the burden of the world. Philosophers, religionists, and people in general must take to this movement very seriously, for man-made plans and devices will not help bring peace on earth. The transcendental sound Hare Krsna is not different from the person Krsna.
nama cintamanih krsnas
purnah suddho nitya-mukto
’bhinnatvan nama-naminoh
(Padma Purana)
There is no difference between the sound Hare Krsna and Krsna the person.
Srimad Bhagavatam Canto 10, Chapter 01, Text 21
Srimad Bhagavatam Canto 10, Chapter 01, Text 23