Sea

He is the One who merges the two seas, one fresh and sweet, the other salty and bitter, and placed between them a barrier, an impassable divide.

25:53And He it is Who hath given independence to the two seas (though they meet); one palatable, sweet, and the other saltish, bitter; and hath set a bar and a forbidding ban between them.

27:61Is not He (best) Who made the earth a fixed abode, and placed rivers in the folds thereof, and placed firm hills therein, and hath set a barrier between the two seas? Is there any Allah beside Allah? Nay, but most of them know not!

35:12And the two seas are not alike: this, fresh, sweet, good to drink, this (other) bitter, salt. And from them both ye eat fresh meat and derive the ornament that ye wear. And thou seest the ship cleaving them with its prow that ye may seek of His bounty, and that haply ye may give thanks.

55:19He hath loosed the two seas. They meet.

55:20There is a barrier between them. They encroach not (one upon the other).