Genesis 7:12

Gen 7:12 And the rain was upon the earth forty days and forty nights.

Ver. 12. Forty days and forty nights.] This was God’s last warning-piece, shot off at these secure sinners, to arouse them, if haply they would awake out of "the snare of the devil," who lay "taken captive by him, at his will": {2Ti 2:26} God loveth to fore-signify, saith the heathen historian.

John Trapp, A Commentary or Exposition upon All the Books of the Old and New Testament (1647–1656) — public domain. Text from a community e-Sword module.

Gen 7:12. Forty days and forty nights — By proceeding in this gradual way, God, it is hoped, both awakened many to repentance, and gave them space for it.

Joseph Benson's Commentary on the Old and New Testaments (1811–1818) — public domain. Text from a community e-Sword module.

Verse 12. The rain was upon the earth] Dr. Lightfoot supposes that the rain began on the 18th day of the second month, or Marcheshvan, and that it ceased on the 28th of the third month, Cisleu.

Adam Clarke's Commentary on the Bible (1810–1826) — public domain. Text from a community e-Sword/MySword module.

12. And the rain was upon the earth. Although the Lord burst open the floodgates of the waters, yet he does not allow them to break forth in a moment, so as immediately to overwhelm the earth, but causes the rain to continue forty days; partly, that Noah, by long meditation, might more deeply fix in his memory what he had previously learned, by instruction, through the word; partly, that the wicked, even before their death, might feel that those warnings which they had held in derision, were not empty threats. For they who had so long scorned the patience of God, deserved to feel that they were gradually perishing under that righteous judgment of his, which, during a hundred years, they had treated as a fable. And the Lord frequently so tempers his judgments, that men may have leisure to consider with more advantage those judgments which, by their sudden eruption, might overcome them with astonishment. But the wonderful depravity of our nature shows itself in this, that if the anger of God is suddenly poured forth, we become stupefied and senseless; but if it advances with measured pace, we become so accustomed to it as to despise it; because we do not willingly acknowledge the hand of God without miracles; and because we are easily hardened, by a kind of superinduced insensibility, at the sight of God’s works.

John Calvin's Commentaries (1540-1563) — public domain. Text from the Calvin Translation Society English edition (1840s-50s) via the Christian Classics Ethereal Library (ccel.org). Calvin's coverage is partial (roughly two-thirds of the Bible); uncommented books and verses are honest gaps, never fabricated. The 19th-century editor's footnotes and remarks are omitted so the notes are faithfully Calvin's own voice.

They, and every beast after his kind, and all the cattle after their kind,.... They, Noah and his family, went into the ark; as did all sorts of beasts and cattle, reckoned one hundred and thirty sorts, by some one hundred and fifty, including serpents:

and every creeping thing that creepeth upon the earth after his kind; supposed to be scarce thirty sorts; not one sort of creature was left out, though ever so small, and despicable:

every fowl after his kind; Bishop Wilkins has divided them into nine sorts, and reckons them up to be one hundred and ninety five in the whole:

every bird of every sort, or "bird of every wing" (k), let their wings be what they will; some, as Ainsworth observes, are winged with feathers, others with skin, as bats.

(k) "omnes aves cujuscunque alae", Junius & Tremellius, Piscator, Cocceius, Schmidt.

John Gill's Exposition of the Whole Bible (1746–1763) — public domain (CC PDM 1.0). Text via the HelloAO Bible API.

God by this gradual proceeding both awakened to repentance, and gave them space for it.

Matthew Poole's English Annotations on the Holy Bible (1683–1685) — public domain. Text from a community e-Sword/MySword module.

It rained without intermission or abatement, forty days and forty nights - And that upon the whole earth at once.

John Wesley, Explanatory Notes Upon the Whole Bible (1754–1765) — public domain. Text via the GEBible commentary corpus.

ויהי הגשם על הארץ AND THE RAIN WAS UPON THE EARTH — But later on (v. 17) it says. “And the Flood was upon the earth”! But the explanation is this: when He poured down the water at first He made it fall in mercy (gently), in order that if the people would repent, it might prove a rain of blessing; but when they did not repent it became a destructive flood (Genesis Rabbah 31:12).

‘ארבעים יום וגו FORTY DAYS AND [FORTY NIGHTS] — The first day is not included in this number, because its night (i.e. the night that preceded it, since according to Jewish reckoning a “day” comprises night-time and the following day-time) was not included with it — for it is written (v. 11) “On the same day (i. e. day-time) were all the fountains of the great deep broken up”. (Consequently the forty days ended, according to R. Eliezer, on the 28th day of Kislev (Rosh Hashanah 11b). as the months are counted as regular months, one full (of 30 days) and the next defective (of 29 days), so we have, 12 days of Marcheshvan and 28 days of Kislev.

Rashi on the Tanakh — English translations: “The Judaica Press complete Tanach with Rashi, translated by A. J. Rosenberg” (CC BY 4.0); “Pentateuch with Rashi's commentary by M. Rosenbaum and A.M. Silbermann, 1929-1934” (public domain); “The Metsudah Tanach series, Lakewood, N.J” (CC BY 4.0); and “The Book of Joshua, Metsudah Publications, 1997” (CC BY 4.0). Text via Sefaria.

ויהי הגשם, as G’d had predicted so it came to pass; it kept raining non-stop for 40 days.

Radak on the Tanakh — English translations: “Sefaria Community Translation” (CC0 1.0 (public-domain dedication)); “Eliyahu Munk, HaChut Hameshulash” (CC BY 4.0); “Rabbi Mike Feuer, Jerusalem Anthology” (CC BY 4.0); and “R. David Kimhi on the first book of Psalms, Translated by R.G. Finch, London, 1919” (public domain). Text via Sefaria.