The period immediately following the resurrection of Jesus and ended when the last apostle (John) died in 99AD. It was the time of the initial formation, growth, and development stage of the early church. It was during this dynamic foundation period in church history that the whole of the NT was written – with the Gospels, outlining what Jesus said and did; and the Epistles, which developed the meaning and significance of what Jesus said and did and how we as believers are to live. In contrast to the OT, a whole new way of relating to God and others began, “built on the foundation of the apostles and prophets, with Christ Jesus himself as the chief cornerstone” (Eph 2:20).
Recently the New Apostolic Reformation (NAR) has gained significant influence although some of its views and teachings are at variance with those of the Bible.