Luke 1:1-4 Revised Standard Version Catholic Edition (RSVCE)
Dedication to Theophilus
1 Inasmuch as many have undertaken to compile a narrative of the things which have been accomplished among us, 2 just as they were delivered to us by those who from the beginning were eyewitnesses and ministers of the word, 3 it seemed good to me also, having followed all things closely[a] for some time past, to write an orderly account for you, most excellent Theoph′ilus,[b] 4 that you may know the truth concerning the things of which you have been informed.
John 21:24-25 Revised Standard Version Catholic Edition (RSVCE)
24 This is the disciple who is bearing witness to these things, and who has written these things; and we know that his testimony is true.
25 But there are also many other things which Jesus did; were every one of them to be written, I suppose that the world itself could not contain the books that would be written.