Charles Ellicott Commentary 2 Kings 23:24

"Moreover them that had familiar spirits, and the wizards, and the teraphim, and the idols, and all the abominations that were seen in the land of Judah and in Jerusalem, did Josiah put away, that he might confirm the words of the law which were written in the book that Hilkiah the priest found in the house of Jehovah." — 2 Kings 23:24 (ASV)

Moreover the workers ... —After abolishing public idolatry, Josiah attacked the various forms of private superstition.

The workers with familiar spirits. — The necromancers (ôbôth; 1 Samuel 28:3 and following). (See 2 Kings 21:6.)

Images. —See margin; and Genesis 31:19; Judges 17:5; 1 Samuel 19:13; Zechariah 10:2.

The idols. — The dunglings. Gesenius prefers to render, idol-blocks; Ewald, doll-images. (See 2 Kings 17:12.)

That were spied (seen).—A significant expression. Many idols were, doubtless, concealed by their worshippers.

Put away. —Or, put out, did away with (Deuteronomy 13:6; Deuteronomy 17:7); strictly, consumed. (See the law in Leviticus 20:27; Deuteronomy 18:9–10.)