Into thine house - This appears to have been special to the plague, as such. It was especially the visitation which would be felt by the scrupulously-clean Egyptians.
Kneadingtroughs - Not dough, as in the margin. See Exodus 12:34.
Related Commentaries of Exodus 8:3
Exodus 8:3
3 And the river shall bring forth frogs abundantly, which shall go up and come into thine house, and into thy bedchamber, and upon thy bed, and into the house of thy servants, and upon thy people, and into thine ovens, and into thy kneadingtroughs:a