en_tn/2ki/24/14.md

He took into exile all Jerusalem

Here "Jerusalem" is a metonym for the people who lived there. And, "all" is a generalization. It means all the most important people Alternate translation: "Nebuchadnezzar took all the important people away from Jerusalem" (See: rc://en/ta/man/translate/figs-metonymy and rc://en/ta/man/translate/figs-hyperbole)

the craftsmen and the smiths

"the men who knew how to make and repair things that are made from metal"

No one was left except the poorest people in the land

This can be translated as a positive statement. Alternate translation: "Only the poorest people in the land still lived there" (See: rc://en/ta/man/translate/figs-doublenegatives)