Military Arms were Provided by Individuals Themselves
Source: TTT
1 Chronicles 12:33, 37
From Zebulun: 50,000 fit for service, trained for battle with all kinds of weapons of war, who with one purpose were devoted to David. / And from east of the Jordan, from Reuben, Gad, and the half-tribe of Manasseh there: 120,000 armed with every kind of weapon of war.