84 Heb “Is not my message like a fire?” The rhetorical question expects a positive answer that is made explicit in the translation. The words “that purges dross” are not in the text but are implicit to the metaphor. They are supplied in the translation for clarity.
85 Heb “Is it not like a hammer that breaks a rock in pieces?” See preceding note.
86 Heb “Oracle of the Lord.”

In other versions

Is not my word like fire, declares the Lord, and like a hammer that breaks the rock in pieces?

“Is not my word like fire,” declares the Lord, “and like a hammer that breaks a rock in pieces?

“Is not my word like fire”—this is the Lord’s declaration—“and like a hammer that pulverizes rock?

Does not my word burn like fire?”

says the Lord.

“Is it not like a mighty hammer

that smashes a rock to pieces?

“Is not my word like fire?” declares Yahweh, “and like a blacksmith’s hammer that breaks a rock into pieces?

Is not my word like as a fire? saith the Lord; and like a hammer that breaketh the rock in pieces?

Public Domain