'Doubly' in the Bible

I will first doubly repay their iniquity and their sin, because they have polluted My land; they have filled My inheritance with the carcasses of their detestable idols and with their abominations.”

These are the men who are hidden reefs in your love feasts when they feast with you without fear, caring for themselves; clouds without water, carried along by winds; autumn trees without fruit, doubly dead, uprooted;