Exodus 8:2
But if thou art, refusing, to let them go, lo! I, am plaguing all thy boundaries with frogs;
Exodus 7:14
Then said Yahweh unto Moses, Dull, is the heart of Pharaoh, - he hath refused to let the people go.
Exodus 9:2
But, if, refusing, thou art to let them go, - and still art holding them fast,
Psalm 78:45
He sent among them, The gad-fly, and it devoured them, And the frog, and it despoiled them;
Psalm 105:30
Their land swarmed with frogs, In the chambers of their kings!
Revelation 16:13-14
And I saw, out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false-prophet, three impure spirits, as frogs;