Kierkegaard tells a fable of a king who fell in love with a maid. When asked, "How shall I declare my love?" his counselors answered, "Your majesty has only to appear in all the glory of your royal glory before the maid's humble dwelling and she will instantly fall at your feet and be yours."
But it was precisely that which troubled the king. He wanted her glorification, not his. In return for his love he wanted hers, freely given. Finally, the king realized love's truth, that freedom for the beloved demanded equality with the beloved. So late one night, after all the counselors of the palace had retired, he slipped out a side door and appeared before the maid's cottage dressed as a servant.
This fable closely aligns with the Christmas story. We are called to obey not God's power, but God's love. God wants not submission to his power, but in return for his love, our own.
God moved in. He pitches his fleshly tent in silence on straw, in a stable, under a star. The cry from that infant's throat pierced the silence of centuries. God's voice could actually be heard coming from human vocal cords.
That's the joy of it. God has come to be with us!