ACT 23:5

5 Paul replied, “My fellow Jews, I [am sorry that I said that]. I did not know that the man [who told one of you to hit me] is the high priest. [If I had known that, I would not have insulted our supreme priest], because I [know that] it is written {[that Moses] wrote} [in our Jewish law], ‘Do not speak evil of any of your rulers!’”