Apostles in the New Testament

In Christian theology and ecclesiology, the apostles, particularly the Twelve Apostles (also known as the Twelve Disciples or simply the Twelve), were the primary disciples of Jesus according to the New Testament. During the life and ministry of Jesus in the 1st century AD, the apostles were his closest followers and became the primary teachers of the gospel message of Jesus. There is also an Eastern Christian tradition derived from the Gospel of Luke that there were seventy apostles during the time of Jesus' ministry.

The commissioning of the Twelve Apostles during the ministry of Jesus is described in the Synoptic Gospels. After his resurrection, Jesus sent eleven of them (as Judas Iscariot by then had died) by the Great Commission to spread his teachings to all nations.

In the Pauline epistles, Paul, although not one of the original twelve, described himself as an apostle, saying he was called by the resurrected Jesus himself during his road to Damascus event. He later describes himself as "an apostle to the Gentiles". The period and associated events in timeline of early Christianity during the lifetimes of the twelve apostles is called the Apostolic Age.

The term apostle comes from the Greek apóstolos (ἀπόστολος) – formed from the prefix apó- (ἀπό-, 'from') and root stéllō (στέλλω, 'I send, I depart') – originally meaning 'messenger, envoy'. It has, however, a stronger sense than the word messenger, and is closer to a 'delegate'.

Mark 6:7–13 states that Jesus initially sent out these twelve in pairs (cf. Mt 10:5–42, Lk 9:1–6) to towns in Galilee. The text states that their initial instructions were to heal the sick and drive out demons. They are also instructed to "take nothing for their journey, except a staff only: no bread, no wallet, no money in their purse, but to wear sandals, and not put on two tunics", and that if any town rejects them they ought to shake the dust off their feet as they leave, a gesture which some scholars think was meant as a contemptuous threat.

Later in the Gospel narratives, the Twelve Apostles are described as having been commissioned to preach the Gospel to "all the nations", regardless of whether Jew or Gentile. Paul emphasized the important role of the apostles in the church of God when he said that the household of God is "built upon the foundation of apostles and prophets, Christ Jesus himself being the cornerstone."

All four canonical Gospels record the circumstances in which some of the disciples were recruited. According to the Gospel of John, Andrew, who was the disciple of John the Baptist, and another unnamed disciple of John the Baptist, traditionally believed to be John, upon hearing the Baptist point out Jesus as the "Lamb of God", followed Jesus and spent the day with him, thus becoming the first two disciples called by Jesus. For this reason the Eastern Orthodox Church honours Andrew with the name Protokletos, which means "the first called".

Despite Jesus only briefly requesting that they join him, they are all described as immediately consenting and abandoning their nets to do so. The immediacy of their consent has been viewed as an example of divine power, although this is not stated in the text. Another explanation is that some of the disciples may have heard of Jesus beforehand, as implied by the Gospel of John, which states that Andrew was a disciple of John the Baptist, and that he and his brother started following Jesus as soon as Jesus had been baptized.