Genesis 7:18

18 and the waters are mighty, and multiply exceedingly upon the earth; and the ark goeth on the face of the waters.

Genesis 7:18 Meaning and Commentary

Genesis 7:18

And the waters prevailed, and were increased greatly upon
the earth
Still they became greater and more powerful, as to bear up the ark, so to cast down houses, trees by the continual rains that fell, though perhaps they were not so violent as before, and by the constant eruptions of water out of the earth: and the ark went upon the face of the waters;
it floated about upon them, in an easy gentle manner; for there were no storms of wind or tempests raised, which might endanger it. (If much of the water came from volcanic activity, and if earthquakes accompanied the breaking forth of the fountains of the deep, many tidal waves would result. This would completely destroy and remains of the old civilisation and as well give the ark a rough sea to drift in. The ark's dimensions would give make it almost impossible to upset. Ed.)

Genesis 7:18 In-Context

16 and they that are coming in, male and female of all flesh, have come in as God hath commanded him, and Jehovah doth close [it] for him.

17 And the deluge is forty days on the earth, and the waters multiply, and lift up the ark, and it is raised up from off the earth;

18 and the waters are mighty, and multiply exceedingly upon the earth; and the ark goeth on the face of the waters.

19 And the waters have been very very mighty on the earth, and covered are all the high mountains which [are] under the whole heavens;

20 fifteen cubits upwards have the waters become mighty, and the mountains are covered;