Luke begins his gospel account with the reason for his writing it. It also forms a reason for us to read. Reading the Scripture adds to our confidence in those things we have come to believe. We should certain by reading the Scripture.

Luke 1:3 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, 4 so that you may know the certainty of the things you have been taught.