Life is filled with ‘how can this be moments?’. Those moments where you’re shocked by the events unfolding around you and you’re left asking ‘how can this be?’ In the opening verses of Luke’s gospel, Luke records 2 of these moments. Both Zechariah and Mary are visited by the angel Gabriel and receive incredible news that leaves them asking ‘how can this be?’ At first glance, their responses seem similar. But upon more careful consideration we see one is rooted in doubt which produces unbelief, while the other is rooted in trust, which produces obedience.