AND HE it is who has given freedom of movement to the two great bodies of water –* the one sweet and thirst-allaying, and the other salty and bitter - and yet has wrought between them a barrier and a forbidding ban.*

[Easy is it for Him to create likeness and variety:]* thus, the two great bodies of water [on earth] are not alike* the one sweet, thirst-allaying, pleasant to drink, and the other salty and bitter: and yet, from either of them do you eat fresh meat, and [from either] you take gems which you may wear; and on either thou canst see ships ploughing through the waves, so that you might [be able to] go forth in quest of some of His bounty, and thus have cause to be grateful.

and have We not set on it proud, firm mountains, and given you sweet water to drink?*