SB 3.11.27

manvantareṣu bhagavān
 bibhrat sattvaṁ sva-mūrtibhiḥ
manv-ādibhir idaṁ viśvam
 avaty udita-pauruṣaḥ
Synonyms: 
manu-antareṣu — in each change of Manu; bhagavān — the Personality of Godhead; bibhrat — manifesting; sattvam — His internal potency; sva-mūrtibhiḥ — by His different incarnations; manu-ādibhiḥ — as Manus; idam — this; viśvam — the universe; avati — maintains; udita — discovering; pauruṣaḥ — divine potencies.
Translation: 
In each and every change of Manu, the Supreme Personality of Godhead appears by manifesting His internal potency in different incarnations, as Manu and others. Thus He maintains the universe by discovered power.