John Gill Commentary 2 Chronicles 17:4

"but sought to the God of his father, and walked in his commandments, and not after the doings of Israel." — 2 Chronicles 17:4 (ASV)

But sought to the Lord God of his fathers
Prayed to him, worshipped and served him:

and walked in his commandments ;
observed and kept them, moral, ceremonial, and judicial:

and not after the doings of Israel :
who worshipped the golden calves at Dan and Bethel.