36 Therefore, since these facts are undeniable, you ought to calm down and not do anything rash.

Read Acts 19:36 Using Other Translations

Seeing then that these things cannot be spoken against, ye ought to be quiet, and to do nothing rashly.
Seeing then that these things cannot be denied, you ought to be quiet and do nothing rash.
Since this is an undeniable fact, you should stay calm and not do anything rash.