Cross reference
Exodus 8:2
2 and if thou art refusing to send away, lo, I am smiting all thy border with frogs;
Exodus 7:14
14 And Jehovah saith unto Moses, `The heart of Pharaoh hath been hard, he hath refused to send the people away;
Exodus 9:2
2 for, if thou art refusing to send away, and art still keeping hold upon them,
Psalms 78:45
45 He sendeth among them the beetle, and it consumeth them, And the frog, and it destroyeth them,
Psalms 105:30
30 Teemed hath their land `with' frogs, In the inner chambers of their kings.
Revelation 16:13-14
13 and I saw `come' 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 unclean spirits like frogs --
14 for they are spirits of demons, doing signs -- which go forth unto the kings of the earth, and of the whole world, to bring them together to the battle of that great day of God the Almighty; --