Matthew Poole and continuators on Jeremiah 23:29

29 Is not my word like a fire ? saith the LORD, and like an hammer that breaketh the rock in pieces ?

Full of life and efficacy, Ioh. 6.63. Heb. 4.12. like a fire, that warmeth, and healeth, and melteth, and consumeth the dross.

And like an hammer that breaketh the flints, so my Word breaketh hard hearts. Others think, that the Word is here compared to fire, and to an hammer, because of the certain effect that it should have upon those that would not obey it, to burn them up like fire, and break them in pieces like an hammer, and so think this Text well expounded by the Apostle, 2 Cor. 2.16. Certain it is, that Gods word is like fire in both senses, no words of men have an effect and efficacy like Gods Words, nothing but that taketh hold upon the Conscience, and hath such an effect upon the hearts of men. No words shall so certainly and infallibly be justified and made good.