Where in the bible does it say that Luke wrote the book of Acts of the Apostles?

Answer 1

Another answer from our community:At the beginning of Luke's gospel, it begins "...Therefore, since I myself have carefully investigated everything from the beginning, it seemed good also to me to write an orderly account for you, most excellent Theophilus, so that you may know the certainty of the things you have been taught." (Luke 1:3-4) At the beginning of the book of Acts, the same 'Theophilus', (whether an honorary title or an actual name) is addressed, saying "In my former book, Theophilus, I wrote about all that Jesus began to do and to teach until the day he was taken up to heaven, after giving instructions through the Holy Spirit to the apostles he had chosen." (Acts 1:1-2) Hence there is a connection between the two books, and the author of one is presumed to be the author of the other. The style of writing and of the Greek text are also very similar, lending more weight to the theory.

Answer 2

There is nothing in The Bible to say that either the gospel now known as Luke's Gospel or Acts of the Apostles was written by Luke - in fact both books were originally anonymous.
The respected New Testament scholar, Raymond E Brown, says that the main objection against authorship by a companion of Paul, as Luke is said to have been, comes in terms of historical and theological differences and discrepancies from the Pauline letters.