16 next, Amasiah son of Zikri, who volunteered himself for the service of the LORD, with 200,000.

Read 2 Chronicles 17:16 Using Other Translations

And next him was Amasiah the son of Zichri, who willingly offered himself unto the LORD; and with him two hundred thousand mighty men of valour.
and next to him Amasiah the son of Zichri, a volunteer for the service of the LORD, with 200,000 mighty men of valor.
Next was Amasiah son of Zicri, who volunteered for the LORD ’s service, with 200,000 troops under his command.