It might seem like a downer coming so soon after the joy of Christmas day. But Jesus came to save us and he did that by giving his life for us on the cross. From the cradle to the cross. It's interesting that some of the Christmas carols actually note this. What Child Is This, for example, has these lyrics in one of the lesser-sung verses:
Sword, spear, will pierce him through,
The cross be borne for me, for you.
Hail, hail, the Word made flesh,
The babe, the child of Mary.
Or consider We Three Kings:
Myrrh is mine, its bitter perfume
Breathes a life of gathering gloom;
Sorrowing, sighing, bleeding, dying,
Sealed in the stone cold tomb.
Or The Holly and the Ivy:
The holly bears a bark
As bitter as any gall;
And Mary bore sweet Jesus Christ
For to redeem us all.
But this is good news, because through his death, Jesus conquered death so that we might live forever.