From time immemorial, the land of Israel was a bridge between three continents. Here lie the ruins of ancient civilizations, which created three monotheistic religions: Judaism, Christianity and Islam. For the Jews it is a country of the Torah and a glorious history, for Christians - the place of the deeds and sufferings of Jesus Christ, for Muslims - the country where the prophet ascended to heaven. The main religion in Israel is Judaism.

A small reference from Wikipedia:

According to the Israeli Central Bureau of Statistics, at the end of 2006, 75, 8% of Israelis were Jews, 18, 2% - Muslims, 2, 1% Christians, and The remaining 4% (mostly people of Jewish descent, but not Jews on the maternal line) were not assigned to any confession.