The Books of Luke and Acts
Luke 1 Inasmuch as many have taken in hand to set in order a narrative of those things which have been fulfilled among us, 2 just as those who from the beginning were eyewitnesses and ministers of the word delivered them to us, 3 it seemed good to me also, having had perfect understanding of all things from the very first, to write to you an orderly account, most excellent Theophilus, 4 that you may know the certainty of those things in which you were instructed.
Acts 1 The former account I made, O Theophilus, of all that Jesus began both to do and teach, 2 until the day in which He was taken up, after He through the Holy Spirit had given commandments to the apostles whom He had chosen, 3 to whom He also presented Himself alive after His suffering by many infallible proofs, being seen by them during forty days and speaking of the things pertaining to the kingdom of God.
The first thing you should notice is that they are both addressed to Theophilus. Paul was on trial in Rome and his coworker in the Lord was the Physician Luke. Theophilus was the lead investigator for the court of Cesar. Cesar was going to decide Paul’s fate and Theophilus brought in the evidence. The two books Luke wrote were written not only about the beginning Church but also how Paul played a role.
The letters were in essence affidavits; a written statement confirmed by oath or affirmation, for use as evidence in court. Luke had a first hand account of everything and was more than qualified to testify.
These two letters or books in the New Testament not only give solid evidence they are part of the Canon. Church fathers added them because they were also inspired by the Holy Spirit.
God’s peace, Dan Beliveau