Apostolic means “of or relating to the apostles” (that is, followers of Jesus). This can apply to the twelve apostles (disciples), to their teaching and practices, or the spiritual authority that has emerged from them.
Key verse about Apostolic: to take over this apostolic ministry, which Judas left to go where he belongs” (Acts 1:25, NIV).
A lifelong student of the Bible, Peter DeHaan, PhD, wrote the 1,000-page website ABibleADay.com to encourage people to explore the Bible. His main blog and many books urge Christians to push past the status quo and reconsider how they practice their faith in every area of their lives.