19:1-9 The prophet must give notice of ruin coming upon Judah and Jerusalem. Both rulers and ruled must attend to it. That place which holiness made the joy of the whole earth, sin made the reproach and shame of the whole earth. There is no fleeing from God's justice, but by fleeing to his mercy.
6. no more … Tophet—from Hebrew, toph, "drum"; for in sacrificing children to Molech drums were beaten to drown their cries. Thus the name indicated the joy of the people at the fancied propitiation of the god by this sacrifice; in antithesis to its joyless name subsequently.
valley of slaughter—It should be the scene of slaughter, no longer of children, but of men; not of "innocents" (Jer 19:4), but of those who richly deserved their fate. The city could not be assailed without first occupying the valley of Hinnom, in which was the only fountain: hence arose the violent battle there.