'Foul' in the Bible

And the fish that are in the river shall die, and the river shall become foul; and the Egyptians shall loathe to drink water from the river.

And the fish that were in the river died; and the river became foul, and the Egyptians could not drink water from the river; and the blood was throughout all the land of Egypt.

Notwithstanding they hearkened not unto Moses; but some of them left of it until the morning, and it bred worms, and became foul: and Moses was wroth with them.

And they laid it up till the morning, as Moses bade: and it did not become foul, neither was there any worm therein.

And the rivers shall become foul; the streams of Egypt shall be diminished and dried up; the reeds and flags shall wither away.

Seemeth it a small thing unto you to have fed upon the good pasture, but ye must tread down with your feet the residue of your pasture? and to have drunk of the clear waters, but ye must foul the residue with your feet?

Thou art filled with shame, and not glory: drink thou also, and be as one uncircumcised; the cup of Jehovah's right hand shall come round unto thee, and foul shame shall be upon thy glory.

And in the morning, It will be foul weather to-day: for the heaven is red and lowering. Ye know how to discern the face of the heaven; but ye cannot discern the signs of the times.