'River' in the Bible

He sent messengers to Balaam son of Beor [at] Pethor, which [is] by the river, in the land of the children of his people, to summon him, saying, "Look! A people went out from Egypt. Look! They cover {the surface of the land}; they [are about] to dwell opposite me.

They are spread out like valleys, like gardens on a river, like aloes planted by Yahweh, like cedars at [the] waters.