Prayers of the early Christian Church include the Lord's Prayer (or Our Father), prayers in writings of the Church Fathers and liturgical prayers existing in early documents such as the Didache. Early Christians also frequently made use of the Psalms in worship.
That the Lord's Prayer existed in early Christian communities can be affirmed by references in early Christian documents, such as St. Augustine's "On the Lord's Prayer." Other Church Fathers either wrote or copied prayers within their works. For example, St. Clement of Rome (1st century, A.D.) includes a prayer to God for rulers and governors at the end of his first Epistle to the Corinthians.
Among the early documents for which the authors are unknown, the Didache stands out for its detailed directives on both the liturgy and on prayers to say during the celebration of the Eucharist.