The Constitution on the Sacred Liturgy of the Second Vatican Council is one of the most influential documents on worship renewal in the twentieth century. It has resulted in vast changes in Roman Catholic worship and has also made a noticeable impact on Protestant worship, especially in the mainline denominations. The intent of the document is to call the church back to early Christian worship and spirituality.
While many conservative Catholics decried the decisions that came out of Vatican II, most embraced the changes and the short-term results were largely a more committed and biblically educated laity.
By the time of the Second Vatican Council in 1962 Pope John XXIII had taken a more conciliatory tone by stating that Protestants and Catholics should meet regularly to pray for unity.