46
Śrīmad-Bhāgavatam
[Canto 10, Ch. 1]
TEXT 22
पुरैव पुंसावधृतो धराज्वरो 
  भवद्भिरंशैर्यदुषूपजन्यताम् । 
  स यावदुर्व्या भरमीश्वरेश्वरः 
  स्वकालशक्त्या क्षपयंश्चरेद् भुवि ॥२२॥
puraiva puṁsāvadhṛto dharā-jvaro 
  bhavadbhir aṁśair yaduṣūpajanyatām 
  sa yāvad urvyā bharam īśvareśvaraḥ 
  sva-kāla-śaktyā kṣapayaṁś cared bhuvi
purā —even before this;  eva —indeed;  puṁsā —by the Supreme Personality of Godhead;  avadhṛtaḥ —was certainly known;  dharā-jvaraḥ —the distress on the earth;  bhavadbhiḥ —by your good selves;  aṁśaiḥ —expanding as plenary portions;  yaduṣu —in the family of King Yadu;  upajanyatām —take your birth and appear there;  saḥ —He (the Supreme Personality of Godhead);  yāvat —as long as;  urvyāḥ —of the earth;  bharam —the burden;  īśvara-īśvaraḥ —the Lord of lords;  sva-kāla-śaktyā —by His own potency the time factor;  kṣapayan —diminishing;  caret —should move;  bhuvi —on the surface of the earth.
TRANSLATION
Lord Brahmā 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
As stated in the  Brahma-saṁhitā  (5.39):
rāmādi-mūrtiṣu kalā-niyamena tiṣṭhan 
  nānāvatāram akarod bhuvaneṣu kintu