2 Kings 14:21

21 Then all the people of Judah made Uzziahn king in place of his father Amaziah. Uzziah was sixteen 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 The people in Jerusalem made plans against him. So he ran away to the town of Lachish, but they sent men after him to Lachish and killed him.

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

21 Then all the people of Judah made Uzziahn king in place of his father Amaziah. Uzziah was sixteen years old.

22 He rebuilt the town of Elath and made it part of Judah again after Amaziah died.

23 Jeroboam son of Jehoash became king of Israel in Samaria during the fifteenth year Amaziah was king of Judah. (Amaziah was the son of Joash.) Jeroboam ruled forty-one years,