Ezekiel 32:14

Then will I make their waters deep, and cause their rivers to run like oil, saith the Lord GOD.

Then will I make their waters deep - rather, 'then will I make their waters to subside' [ 'ashqiya`

(H8257)] - literally, 'to sink in the deep' (Fairbairn).

And cause their rivers to run like oil - emblem of quietness. No longer shall they descend violently as the overflowing Nile on other countries, but shall be still and sluggish in political action.