Bible Verses About Armies: Composed of mercenaries

When the Ammonites realized that they had become a stench to David, Hanun and the Ammonites sent a thousand talents of silver to hire for themselves chariots and horsemen from Aram-naharaim, Aram-maacah, and Zobah.

So they hired for themselves thirty-two thousand chariots, as well as the king of Maacah with his troops, who came and camped near Medeba while the Ammonites came from their cities and marched out for battle.

Then Amaziah gathered the people of Judah and assigned them according to their families to commanders of thousands and of hundreds. And he numbered those twenty years of age or older throughout Judah and Benjamin and found 300,000 chosen men able to serve in the army, bearing the spear and shield.

He also hired 100,000 mighty warriors from Israel for a hundred talents of silver.