Military Arms of Conquered Nations Taken Away to Prevent Rebellion
Source: TTT
Judges 5:8
When they chose new gods, then war came to their gates. Not a shield or spear was found among forty thousand in Israel.
1 Samuel 13:19–22
And no blacksmith could be found in all the land of Israel, because the Philistines had said, “The Hebrews must not be allowed to make swords or spears.” / Instead, all the Israelites would go down to the Philistines to sharpen their plowshares, mattocks, axes, and sickles. / The charge was a pim for sharpening a plowshare or mattock, a third of a shekel for sharpening a pitchfork or an axe, and a third of a shekel for repointing an oxgoad.