John Gill Commentary 2 Chronicles 35:26

"Now the rest of the acts of Josiah, and his good deeds, according to that which is written in the law of Jehovah," — 2 Chronicles 35:26 (ASV)

Ver. 26,27 Now the rest of the acts of Josiah, and his goodness

His piety towards God, and liberality to the people; of these two verses, (See Gill on 2 Kings 23:28).