What are some links between Judaism, christianity and islam?

Judaism, christiany, and islam are siblings who share the same belief in God, the christian god is jesus and the God of islam is Allah

There are key beliefs in both Islam and Judaism that are not shared by most of Christianity (such as strict monotheism and adherence to Divine Law), and key beliefs of Islam, Christianity, and the Bahá'í Faith not shared by Judaism (such as the prophetic and Messianic position of Jesus, respectively).