אָ֚ז אַשְׁקִ֣יעַ מֵֽימֵיהֶ֔ם וְנַהֲרוֹתָ֖ם כַּשֶּׁ֣מֶן אוֹלִ֑יךְ נְאֻ֖ם אֲדֹנָ֥י יְהוִֽה׃
Then will I make their waters to settle, And cause their rivers to run like oil, Saith the Lord GOD.
Read kabbalistic (mystical) interpretation of Ezekiel 32:14: and classical mystical sources.