Girdles used for Suspending the Sword
Source: TTT
2 Samuel 20:8
And while they were at the great stone in Gibeon, Amasa joined them. Now Joab was dressed in military attire, with a dagger strapped to his belt. And as he stepped forward, he slipped the dagger from its sheath.
Nehemiah 4:18
And each of the builders worked with his sword strapped at his side. But the trumpeter stayed beside me.