The supreme mystery with which the gospel confronts us, [lies] in the Christmas message of Incarnation.
The really staggering Christian claim is that Jesus of Nazareth was God made man. . . determining human destiny, . . . and that He took humanity without loss of deity, so that Jesus of Nazareth was as truly and fully divine as He was human.
. . . . It is here, in the thing that happened at the first Christmas, that the profoundest and most unfathomable depths of the Christian revelation lie.
‘The Word became flesh’ (John 1:14); God became man; the divine Son became a Jew; the Almighty appeared on earth as a helpless human baby, unable to do more than lie and stare and wriggle and make noises, needing to be fed and changed and taught to talk like any other child.
. . . . The more you think about it, the more staggering it gets. Nothing in fiction is so fantastic as is this truth of the Incarnation.
—J.I. Packer, Knowing God, 53