Lex orandi, lex credendi (Latin: "the law of what is prayed [is] the law of what is believed"), sometimes expanded as Lex orandi, lex credendi, lex vivendi (Latin: "the law of what is prayed [is] what is believed [is] the law of what is lived"), is a motto in Christian tradition, which means that prayer and belief are integral to each other and that liturgy is not distinct from theology. It refers to the relationship between worship and belief. As an ancient Christian principle it provided a measure for developing the ancient Christian creeds, the canon of scripture, and other doctrinal matters. It is based on the prayer texts of the Church, that is, the Church's liturgy. In the Early Church, there was liturgical tradition before there was a common creed, and before there was an officially sanctioned biblical canon. These liturgical traditions provided the theological (and doctrinal) framework for establishing the creeds and canon.