SEV Biblia, Chapter 16:2
Cuando comenzó a reinar Acaz, era de veinte años, y reinó en Jerusalén dieciséis años; y no hizo lo recto en ojos del SEÑOR su Dios, como David su padre;
Clarke's Bible Commentary - 2 Kings 16:2
Verse 2. Twenty years old was Ahaz] Here is another considerable difficulty in the chronology. Ahaz was but twenty years old when he began to reign, and he died after he had reigned sixteen years; consequently his whole age amounted only to thirty-six years. But Hezekiah his son was twenty-five years old when he began to reign; and if this were so, then Ahaz must have been the father of Hezekiah when he was but eleven years of age! Some think that the twenty years mentioned here respect the beginning of the reign of Jotham, father of Ahaz; so that the passage should be thus translated: Ahaz was twenty years of age when his father began to reign; and consequently he was fifty-two years old when he died, seeing Jotham reigned sixteen years: and therefore Hezekiah was born when his father was twenty-seven years of age. This however is a violent solution, and worthy of little credit. It is better to return to the text as it stands, and allow that Ahaz might be only eleven or twelve years old when he had Hezekiah: this is not at all impossible; as we know that the youth of both sexes in the eastern countries are marriageable at ten or twelve years of age, and are frequently betrothed when they are but nine. I know a woman, an East Indian, who had the second of her two first children when she was only fourteen years of age, and must have had the first when between eleven and twelve. I hold it therefore quite a possible case that Ahaz might have had a son born to him when he was but eleven or twelve years old.
John Gill's Bible Commentary
Ver. 2. Twenty years old was Ahaz when he began to reign, and reigned sixteen years in Jerusalem , etc.] The same number of years his father did: and did not that which was right in the sight of the Lord God, like David his father ; his more remote progenitor, nor even like his more immediate father, from whom he received such good instructions, and of whom he had so good an example; but grace is neither propagated by blood, nor obtained through the force of education.
Matthew Henry Commentary
Verses 1-9 - Few and evil were the days of Ahaz. Those whose hearts condemn them will go any where in a day of distress, rather than to God. The sin wa its own punishment. It is common for those who bring themselves int straits by one sin, to try to help themselves out by another.
Original Hebrew
בן 1121 עשׂרים 6242 שׁנה 8141 אחז 271 במלכו 4427 ושׁשׁ 8337 עשׂרה 6240 שׁנה 8141 מלך 4427 בירושׁלם 3389 ולא 3808 עשׂה 6213 הישׁר 3477 בעיני 5869 יהוה 3068 אלהיו 430 כדוד 1732 אביו׃ 1
