טוֹב לְרַע עָשִׂיתָ -רַע עָשִׂיתָ

ביטוי (אנגלית)

Doing Good to the Wicked Is Doing Evil/ doing a fafour to someone bad is doing wrong

הגדרה (אנגלית)

Helping a wicked person is as if you had done harm to yourself.

("The creatures say: 'If you did good to the wicked, you did evil; do not do good to the wicked, and evil will not come upon you'" — Vayikra Rabbah (Vilna), Acharei Mot, parasha 22)