Melachim Bais 16:1-2

Orthodox Jewish Bible

16 In the seventeenth year of Pekach Ben Remalyahu, Achaz Ben Yotam Melech Yehudah began to reign.

² 20 years old was Achaz when he began to reign, and reigned 16 shanah in Yerushalayim, and did not that which was yashar in the eyes of Hashem Elohav, like Dovid Aviv.