The waters prevailed and increased greatly on the earth, and the ark floated on the face of the waters.
We are here told, I. How long the flood was increasing - forty days, Gen 7:17. The profane world, who believed not that it would come, probably when it came flattered themselves with hopes that it would soon abate and never come to extremity; but still it increased, it prevailed. Note, 1. When God judges he will overcome.
Commenting on Genesis 7:17-20
Fifteen cubits upwards did the waters prevail,.... Either to such an height above the earth, upwards from that, or from the high hills; for though the words do not necessarily imply that, yet it may be allowed, since there was water enough to cover the highest of them; and fifteen cubits of water were enough to drown the tallest man, or largest beast that should...