Musar do Izajasza 8:12

“You shall not follow the many to do bad.” (Exodus 23:2). We were warned with this not to verbally strengthen the hands of sinners, and not join with those that conspire to do injustice - like the matter that is stated (Isaiah 8:12) “You must not call conspiracy, all that people call conspiracy.”

And similarly a friend who will take from you whatever he needs and cause you much harm for the little benefit he will gain from the transaction — quickly turn away from such a friend. And do not make friends with those who "go along with the crowd" and who always agree that there is an injustice, as it is said, "Do not say 'Conspiracy!' just because this people says 'Conspiracy!' " (Is. 8:12).