2 Kings 14:21

21 Then all the people of Y'hudah took 'Azaryah at the age of sixteen and made him king in place of his father Amatzyah.

2 Kings 14:21 Meaning and Commentary

2 Kings 14:21

And all the people of Judah took Azariah
Called Uzziah in the next chapter, and so in the book of Chronicles; both names signifying much the same, the one "the help of the Lord", the other "the strength of the Lord":

(which was sixteen years old;)
yet as he began to reign in the twenty seventh year of Jeroboam, ( 2 Kings 15:1 ) and Jeroboam began to reign in the fifteenth yaer of Amaziah, ( 2 Kings 14:23 ) , he could be but four years of age, for the solution of which, (See Gill on 2 Kings 15:1):

and made him king instead of his father Amaziah;
which was after his death, and not when he fled to Lachish, as Kimchi thinks.

2 Kings 14:21 In-Context

19 Because of a conspiracy formed against him in Yerushalayim, Amatzyah fled to Lakhish; but they followed him to Lakhish and killed him there.

20 They brought his body back on horses, and he was buried in Yerushalayim with his ancestors in the City of David.

21 Then all the people of Y'hudah took 'Azaryah at the age of sixteen and made him king in place of his father Amatzyah.

22 'Azaryah recovered Eilat for Y'hudah and rebuilt it; after that the king [Amatzyahu] slept with his ancestors.

23 It was in the fifteenth year of Amatzyah the son of Yo'ash, king of Y'hudah, that Yarov'am the son of Yo'ash, king of Isra'el, began to reign in Shomron; and he ruled for forty-one years.