Matthew Henry on Genesis 7:17-20
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. If he begin, he will make an end; his way is perfect, both in judgment and mercy. 2. The gradual approaches and advances of God's judgments, which are designed to bring sinners to repentance, are often abused to the hardening of them in their presumption.
II. To what degree they increased: they rose so high that not only the low flat countries were deluged, but to make sure…
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the waters increased, and bare up the ark--It seems to have been raised so gradually as to be scarcely perceptible to its occupants.
Adam Clarke on Genesis 7:16
The Lord shut him in - This seems to imply that God took him under his especial protection, and as he shut Him in, so he shut the Others out. God had waited one hundred and twenty years upon that generation; they did not repent; they filled up the measure of their iniquities, and then wrath came upon them to the uttermost.
John Gill on 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, &c. 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…
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