'Normal' in the Bible

So Moses stretched out his hand over the sea, and the sea returned to its normal flow at sunrise; and the Egyptians retreated right into it [being met by the returning water]; so the Lord overthrew the Egyptians and tossed them into the midst of the sea.

The priest shall examine him again on the seventh day, and if the infection has a more normal color and the spot has not spread on the skin, the priest shall pronounce him clean; it is only a scab; and he shall wash his clothes and be clean.

“Because of this [coming judgment] will the land not quakeAnd everyone mourn who dwells in it?Indeed, all of it shall rise up like the Nile,And it will be tossed around [from the impact of judgment]And [afterward] subside again like the Nile of Egypt.