3especially because you are an expert [fully knowledgeable, experienced and unusually conversant] in all the Jewish customs and controversial issues; therefore, I beg you to listen to me patiently.
3I am very pleased that you are familiar with Jewish ways. You know the kinds of things they argue about. So I beg you to be patient as you listen to me.
3You yourself know all about the Jews. You know about how we live. You also know the things that we argue about with each other. So please be patient and listen to me.