Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[132] After this, the Israelites grew effeminate as to fighting any more against their enemies, but applied themselves to the cultivation of the land, which producing them great plenty and riches, they neglected the regular disposition of their settlement, and indulged themselves in luxury and pleasures; nor were they any longer careful to hear the laws that belonged to their political government: whereupon God was provoked to anger, and put them in mind, first, how, contrary to his directions, they had spared the Canaanites; and, after that, how those Canaanites, as opportunity served, used them very barbarously. But the Israelites, though they were in heaviness at these admonitions from God, yet were they still very unwilling to go to war; and since they got large tributes from the Canaanites, and were indisposed for taking pains by their luxury, they suffered their aristocracy to be corrupted also, and did not ordain themselves a senate, nor any other such magistrates as their laws had formerly required, but they were very much given to cultivating their fields, in order to get wealth; which great indolence of theirs brought a terrible sedition upon them, and they proceeded so far as to fight one against another, from the following occasion: -