To what extent is Israeli law based on religion?

"To what extent is Israeli law based on religion?" The Israeli legal system consists of Secular courts and Religious courts. In a general sense, Israeli law is based on the Jewish religion as far as basic, core beliefs having to do with societal values, as 'Western' democratic governments tend to be (think in terms of, "thou shalt not murder"). For instance, the Israel Defense Force's code of ethics consists of a lot of Jewish influences and values (not necessarily law). Specifically, Jewish law plays out within Israeli law in issues of marriage, divorce and conversion. However, on the whole Israeli law is based on British Mandate law (and in land ownership matter sometimes on Ottoman law) and often the courts try and change religious law. This causes a lot of tension between the secular and religious citizens; the latter believing that religious law cannot be changed by humans.