The Apostles are the early followers of Jesus Christ, specifically the twelve disciples chosen by Him to spread His teachings and establish the Christian faith. They played a crucial role in the formation of the early Church and are often associated with various missionary activities and the authorship of several New Testament texts known as the Epistles. These Epistles, primarily letters written by apostles like Paul, address theological issues, provide guidance to early Christian communities, and offer insights into Christian living. Collectively, they significantly shaped Christian doctrine and practice.