The plague of Frogs, or the second plague, also proceeded from the Nile, and had its natural origin in the putridity of the slimy Nile water, whereby the marsh waters especially became filled with thousands of frogs. צפרדּע is the small Nile frog, the Dofda of the Egyptians, called rana Mosaica or Nilotica by Seetzen, which appears in large numbers as soon as the waters recede. These frogs (הצּפרדּע in Exodus 8:6, used collectively) became a penal miracle from the fact that they came out of the water in unparalleled numbers, in consequence of the stretching out of Aaron's staff over the waters of the Nile, as had been foretold to the king, and that they not only penetrated into the houses and inner rooms ("bed-chamber"), and crept into the domestic utensils, the beds (מטּה), the ovens, and the kneading-troughs (not the "dough" as Luther renders it), but even got upon the men themselves.

Exodus 8:12 Parallel Commentaries

Exodus 8:8,30 Then Pharaoh called for Moses and Aaron, and said, Entreat the LORD, that he may take away the frogs from me, and from my people...

Exodus 9:33 And Moses went out of the city from Pharaoh, and spread abroad his hands to the LORD: and the thunders and hail ceased...

Exodus 10:18 And he went out from Pharaoh, and entreated the LORD.

Exodus 32:11 And Moses sought the LORD his God, and said, LORD, why does your wrath wax hot against your people...

1 Samuel 12:23 Moreover as for me, God forbid that I should sin against the LORD in ceasing to pray for you...

Ezekiel 36:37 Thus said the Lord GOD; I will yet for this be inquired of by the house of Israel, to do it for them...

James 5:16-18 Confess your faults one to another, and pray one for another, that you may be healed...