Jerusalem is the capital of Israel, though not internationally recognized as such. Located in the Judean Mountains, between the Mediterranean Sea and the northern edge of the Dead Sea, modern Jerusalem has grown far beyond the boundaries of the Old City. Jerusalem is a holy city to the three major Abrahamic religions— Judaism, Christianity and Islam. In Judaism, Jerusalem has been the holiest city since, according to the Hebrew Bible, King David of Israel first established it as the capital of the united Kingdom of Israel in c. 1000 BCE, and his son Solomon commissioned the building of the First Temple in the city. In Christianity, Jerusalem has been a holy city since, according to the New Testament, Jesus was crucified in c.33 C.E., and 300 years later Saint Helena identified the pilgrimage sites of Jesus' life. In Sunni Islam, Jerusalem is the third-holiest city.