Twenty and five years old was he when he began to reign,
&c.] Now as Ahaz his father began to reign at twenty, and reigned sixteen, he must die at thirty six; so that this son of his must be born to him when at eleven years of age, for only so many years there be between twenty five and thirty six, which may seem wonderful; but, as Grotius observes, Hezekiah had now entered into the twenty fifth year, and he might be just turned of twenty four, and so his father might be twelve years of age at his birth: besides, as it is usual for the divine historian to take away or add the incomplete years of kings, Ahaz might be near twenty one when he began to reign, and might reign almost seventeen, which makes the age of Ahaz to be about thirty eight; and Hezekiah being but little more than twenty four, at his death there were thirteen or near fourteen years difference in their age, and which was an age that need not be thought incredible for begetting of children. Bochart F6 and others F7 have given many instances of children begotten by persons under that age, even at ten years of age {h}: four years after his birth, the famous city of Rome began to be founded F9, A. M. 3256, and before Christ 748, as commonly received, though it is highly probable it was of a more early date; according to Dionysius Halicarnassensis, it was founded in the first year of the seventh Olympaid, in the times of Ahaz, A. M. 3118 F11:
and he reigned twenty and nine years in Jerusalem;
so that he reigned twenty three years or more after the captivity of the ten tribes:
his mother's name also was Abi the daughter of Zachariah;
perhaps the daughter of the same that was taken by Isaiah for a witness, ( Isaiah 8:3 ) who very probably was a very good woman, and took care to give her son a religious education, though he had so wicked a father.