en_tn_lite_do_not_use/ezk/30/10.md

The Lord Yahweh says this

The word "this" refers to what follows. See how you translated this in Ezekiel 5:5.

I will make an end of the multitudes of Egypt

"I will make it so that Egypt will no longer have many people."

by the hand of Nebuchadnezzar

Here "the hand" represents Nebuchadnezzar's military power. Nebuchadnezzar will be the one who brings this punishment about.