en_tn/2ki/03/03.md

he held on to the sins

This is an idiom. Here "holding on" to something means to continue doing it. Alternate translation: "he continued to commit the sins" (See: rc://en/ta/man/translate/figs-idiom)

Nebat

This is the name of a man. (See: rc://en/ta/man/translate/translate-names)

he did not turn away from them

"Turning away" from something is an idiom which means to stop doing it. Alternate translation: "he did not stop committing those sins" or "he continued committing those sins" (See: rc://en/ta/man/translate/figs-idiom)