Ahaz (â'kăz), seizer or possessor. 1. The eleventh king of Judah; he was contemporary with the prophets Isaiah, Hosea, and Micah. He reigned 16 years. If, as it is stated in 2 Kings 16:2, A. V., Ahaz was 20 years old when he ascended the throne, he must have been the father of Hezekiah when eleven years of age. 2 Kings 18:2. Here, however, the Septuagint and the Syriac read "twenty-five years old." 2 Chronicles 28:1. He was distinguished for his idolatry and contempt of the true God; and against him many of the prophecies of Isaiah are directed. He died b.c. 726; and such was his impiety, that he was not allowed burial in the sepulchre of the kings. 2 Kings 16:1-2; 2 Kings 16:20; 2 Chronicles 28:1-27; Isaiah 7:1; Isaiah 25:2. A descendant of Jonathan. 1 Chronicles 8:35; 1 Chronicles 9:42.