Acts 8
And devout men carried Stephen to his burial, and made great lamentation over him.

A lamentation by definition: The act of bewailing; expression of sorrow; a mournful outcry.
Apparently you were not allowed to openly mourn someone who had been executed….
Yet GREAT lamentations were made for Stephen.

These are some interesting thoughts from my commentary:

And devout men: Seemingly, these Jews were horrified at Stephen’s murder. Perhaps this was Luke’s way of reminding us that not all Jewish people of that time were enemies of Christianity.

Made great lamentation over him: Since Jewish law prohibited open mourning for someone that had been executed, Luke’s record suggests that these devout men publicly repented of Stephen’s murder.