en_tn_condensed/pro/02/14.md

They rejoice

"They" refers to the same people as in Proverbs 2:12.

delight in the perversities of evil

This means basically the same thing as the first part of the sentence. Alternate translation: "delight in doing what they know is evil" (See: rc://en/ta/man/translate/figs-parallelism)