Liturgical churches are those that use a well-defined liturgy, in which many of the words and music used follow basic patterns each time the service is conducted. The liturgy may date to the second century or earlier. Most Orthodox, Catholic, Anglican, and Lutheran churches are liturgical, most other churches to a far lesser extent. Non-liturgical churches usually follow a common worship sequence from one service to the next, with several elements common to many such services. These elements often include readings from the Bible, hymns, a sermon, offerings of money, and at certain times, Communion.