John Gill Commentary Judges 8:35

"neither showed they kindness to the house of Jerubbaal, [who is] Gideon, according to all the goodness which he had showed unto Israel." — Judges 8:35 (ASV)

Neither showed they kindness to the house of Jerubbaal, namely
Gideon
But, on the contrary, great unkindness and cruelty, slaying his seventy sons, as related in the following chapter:

according to all the goodness which he had showed to Israel ;
in exposing his life to danger for their sake, in delivering them out of the hands of their oppressors, in administering justice to them, in protecting them in their civil and religious liberties, and leaving them in the quiet and peaceable possession of them.