Ezekiel 32:15

¹⁵ When I shall make the land of Egypt desolate, and the country shall be destitute of that of which it was full, when I shall smite all them that dwell in it, then shall they know that I am the LORD.

Ezekiel 32:16

¹⁶ This is the lamentation with which they shall lament her: the daughters of the nations shall lament her: they shall lament for her, even for Egypt, and for all her multitude, saith the Lord GOD.

'Waters,' 'rivers,' and 'depths,' as in Psalm 78:15-16, signify truths from the Lord.