Jeremiah 32:22-24

Jeremiah 32:22-24. 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.