1 Chronicles 18:11-13

Thomson(i) 11 And all the vessels of gold and silver and brass, which he brought, these king David dedicated to the Lord, together with the silver and the gold which he took from all the nations from Idumea and Moab, and from the Ammonites and the Philistines and from Amelek. 12 When Abessa son of Saruia had smitten of the Idumeans in the valley of salt, eighteen thousand, 13 he put garrisons in the vale; and the Idumeans became David's vassals, and the Lord preserved David wherever he went.