Judaism
Christianity was originally a sect of Second Temple Judaism, but the two religions diverged in the first century. The differences between Christianity and Judaism originally centered on whether Jesus was the Jewish Messiah but eventually became irreconcilable. Major differences between the two faiths include the nature of the Messiah, of atonement and sin, the status of God's commandments to Israel, and perhaps most significantly of the nature of God himself. Due to these differences, Judaism traditionally regards Christianity as Shituf or worship of the God of Israel which is not monotheistic. Christianity has traditionally regarded Judaism as obsolete with the invention of Christianity and Jews as a people replaced by the Church, though a Christian belief in dual-covenant theology emerged as a phenomenon following Christian reflection on how their theology influenced the Nazi Holocaust.
Secularism in Israel
Masorti/Traditional Jews make up 30.5% of the Jewish population in Israel. This is the second largest group. Many of these "traditional Jews" differ from the Orthodox only because they will drive their cars on the Sabbath, use electricity, watch television, or go to a soccer game or the beach, frequently after attending religious services in the morning and the evening before. Many of the men wrap tefillin every morning, others cover the spectrum of observance. What is critical is that all are committed to a major religious component in the definition of their Jewishness and the Jewishness of the Jewish state. Traditional Jews make up most of the Likud political party.