Preaching Through Luke

Luke wrote this Gospel so "that you [Theophilus] may have certainty concerning the things you have been taught [i.e., catechesis]" (1:4). It proceeds with a barrage of questions.The first comes from Zechariah: "How shall I know?" (1:18). This is a question of knowledge. The angel Gabriel answers that we shall know by the word of God (1:19).The second comes from Mary: "How will this be?" (1:34). This is a question of agency, of how the Son of God can become human. Gabriel answers that it will be