Srimad Bhagavatam Canto 03, Chapter 13, Text 46

SB 3.13.46

maitreya uvaca
ity upasthiyamano ’sau
 munibhir brahma-vadibhih
salile sva-khurakranta
 upadhattavitavanim
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The sage Maitreya said: The Lord, being thus worshiped by all the great sages and transcendentalists, touched the earth with His hooves and placed it on the water.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The earth was placed on the water by His inconceivable potency. The Lord is all-powerful, and therefore He can sustain the huge planets either on the water or in the air, as He likes. The tiny human brain cannot conceive how these potencies of the Lord can act. Man can give some vague explanation of the laws by which such phenomena are made possible, but actually the tiny human brain is unable to conceive of the activities of the Lord, which are therefore called inconceivable. Yet the frog-philosophers still try to give some imaginary explanation.
Srimad Bhagavatam Canto 03, Chapter 13, Text 45
Srimad Bhagavatam Canto 03, Chapter 13, Text 47