Ar-Rahman Verse 20

yet between them is a barrier they never cross.[[ See footnote for {25:53}.]]

yet between them is a barrier so that they do not cross.

between them a barrier they do not overpass.

yet there is a barrier between them they do not cross.

In-between the twain is a barrier which they pass not.

Between them is a Barrier which they do not transgress;

and yet there is a barrier between them which they may not overstep.

With an interstice between them which they cannot cross.

Whereas there is a barrier between them so they cannot encroach upon one another.

There is a barrier between them, which they do not overstep.

(But) between them is a barrier, which they do not transgress (and so they do not merge).

(At present) a barrier stands between them. They cannot encroach one upon the other.

Between them (B) (is) a barrier , they (B) do not transgress .

Whereas there is a barrier between them so they cannot encroach upon one another.

Between them is a barrier which they do not transgress.

Between them is a barrier which none of them can transgress.

Which then of the bounties of your Lord will you deny?

Between them is a barrier which they cannot pass.

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

but has created a barrier between them so that they will not merge totally.

and between them is a barrier which they do not overpass.

Between them is a barrier which none of them can transgress.

Between them is a barrier, which they do not overrun.

Between them is a barrier, which they do not overrun.

Between them there is a barrier, by His power, exalted be He. They do not overstep, neither of the two encroaches upon the other to become mixed with it.

Between them is a barrier which none of them can transgress.

meaning, He has placed a barrier of land between these two types of waters, so that they do not transgress upon each other, which would spoil the characteristics they were created with.