2 Kings 14:21

21 Then all the people of Judah took Azariah and made him king after his father Amaziah. He was 16 years old.

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 Some people in Jerusalem plotted against him. When Amaziah fled to Lachish, they sent men after him to Lachish, and they murdered him there.

20 They carried him back on horses, and he was buried in Jerusalem with his ancestors in David's City.

21 Then all the people of Judah took Azariah and made him king after his father Amaziah. He was 16 years old.

22 He rebuilt Elath, restoring it to Judah after King Amaziah had lain down with his ancestors.

23 Jeroboam, the son of Israel's King Joash, became king in Samaria in the fifteenth year of Judah's King Amaziah, Jehoash's son. He ruled for forty-one years.