Amaziah in the Bible Encyclopedia - ISBE

am-a-zi'-a ('amatsyah, 'amatsyahu, "Yahweh is mighty"; 2 Ki 14:1-20; 2 Ch 25). Son of Jehoash, and tenth king of Judah. Amaziah had a peaceable accession at the age of 25. A depleted treasury, a despoiled palace and temple, and a discouraged people were among the consequences of his father's war with Hazael, king of Syria. When settled on the throne, Amaziah brought to justice the men who had assassinated his father. Amaziah verbal citation of Dt 24:16 in 2 Ki 14:6, forbidding the punishment of children for a father's offense, shows that the laws of this book were then known, and were recognized as authoritative, and, in theory, as governing the nation. His accession may be dated circa 812 (some put later). 1. The Edomite War: The young king's plan for the rehabilitation of his people was the restoration of the kingdom's military prestige, so severely lowered in his father's reign. A militia army, composed of all the young men above 20 years of age, was first organized and placed upon a war footing (2 Ch 25:5; the number given, 300,000, is not a reliable one). Even this not being considered a large enough force to effect the project, 100 talents of silver were sent to engage mercenary troops for the expedition from Israel. When these came, a man of God strongly dissuaded the king from relying on them (2 Ch 25:7 ff). When this was communicated to the soldiers, and they were sent back unemployed, it roused them to "fierce anger" (2 Ch 25:10)...

Link: https://bible-history.com/isbe/A/AMAZIAH/