John Trapp on Jeremiah 23:29

Ver. 29. Is not my Word like a fire?] As it is like ſolid wheat, wholeſom food, 1 Tim. 6.3. ſo it is no leſſe li[illegible: 1 letter]e fire, that moſt active Element, called [non-Latin text not transcribed] becauſe it is pure (ſaith One) and fire, becauſe it is fair: It inlighteneth, enliveneth, warmeth, purgeth, aſſimilateth, aſpireth, conſumeth combuſtible matter, congregat h[illegible: 1 letter] mogenea, ſegregat heterogenia: ſo doth the Word when accompanied by the Spirit who is of a fiery nature and of a fiery operation, Iſa. 4.4. Mal. 3.2, Matth. 3.11. The words that I ſpeak unto you they are Spirit and thee are life, Job. 6.65. Did not our hearts burn within us whiles he talked with us by the way, and opened unto us the holy Scriptures? Luke 24.32. when the word comes home to the heart in the power of it, the preacher was ſent of God: See Gal. 2.8.

And like a hammer that breaketh the rock in pieces?] i. e. The rockieſt hearts and ſturdieſt ſtomacks are tamed & terrified by the Word, when God once takes them to do. I[illegible: 1 letter] is as his plough to break up their fallow ground: and as his ſword to run them through, Jer. 4 Heb. 4. and to lay them for dead, Rom. 7. And like as the hardeſt ice is broken with hot waters, as well as with hammers: ſo is the hardeſt heart with the Goſpel, as well as with the Law.