Charles Spurgeon Commentary Jeremiah 32:22-24

"and gavest them this land, which thou didst swear to their fathers to give them, a land flowing with milk and honey; and they came in, and possessed it, but they obeyed not thy voice, neither walked in thy law; they have done nothing of all that thou commandedst them to do: therefore thou hast caused all this evil to come upon them. Behold, the mounds, they are come unto the city to take it; and the city is given into the hand of the Chaldeans that fight against it, because of the sword, and of the famine, and of the pestilence; and what thou hast spoken is come to pass; and, behold, thou seest it." — Jeremiah 32:22-24 (ASV)

And hast given them this land, which thou didst swear to their fathers to give them, a land flowing with milk and honey, and they came in, and possessed it; but they obeyed not thy voice, neither walked in thy law; they have done nothing of all that thou commandedst them to do: therefore thou hast caused all this evil to come upon them: behold the mounts,—

The margin renders it, "the engines of shot," which we see, by the next chapter, were powerful enough to throw down the houses in Jerusalem.