'River' in the Bible

saying to the sixth angel, the one who had the trumpet, "Release the four angels who have been bound at the great river Euphrates!"

And from his mouth the serpent spouted water like a river after the woman, in order that he could make her swept away by a river.

And the earth came to the aid of the woman, and the earth opened its mouth and swallowed up the river that the dragon had spouted out of his mouth.

And the sixth poured out his bowl on the great river Euphrates, and its water was dried up, in order that the way would be prepared for the kings from {the east}.

And he showed me the river of the water of life, clear as crystal, coming out from the throne of God and of the Lamb

in the middle of its street, and {on both sides of the river} [is] the tree of life, producing twelve fruits--yielding its fruit according to every month--and the leaves of the tree [are] for the healing of the nations.