Jewish liturgy refers specifically to following the Torah in all of its rites and ceremonies, whether in the home or in the Synagogue. The main purposes of following the carefully laid out observances is to maintain uniformity, and to avoid improper and unacceptable practices at variance with those given by the God of the Torah.
The liturgy may include such assistances as responsive reading, songs, or music, as found in the Torah and Haftorah, the Amidah, piyyutim, and Psalms. Singing or reading the Psalms has a special role in the Jewish liturgy, in particular they are used in the daily services of Shacharit, Mincha, and Arvit.
The reading of the Torah is done every morning on the Sabbath. In Babylonia, it was a one year pattern, instead of a three year pattern as done in Israel.
Christians, and all other Abrahamic faiths, borrowed from the Jewish liturgy, and have used many elements of it in their own religious meetings.