Epiphany and Christmastide: "he has given us of his Spirit"

Moreover, we have seen and testify
that the Father sent his Son as savior of the world.
Whoever acknowledges that Jesus is the Son of God,
God remains in him and he in God.

-- 1 Jn 4:11-18

The Word became flesh for us in order to save us by reconciling us with God, who "loved us and sent his Son to be the expiation for our sins": "the Father has sent his Son as the Savior of the world", and "he was revealed to take away sins":

Sick, our nature demanded to be healed; fallen, to be raised up; dead, to rise again. We had lost the possession of the good; it was necessary for it to be given back to us. Closed in the darkness, it was necessary to bring us the light; captives, we awaited a Savior; prisoners, help; slaves, a liberator. Are these things minor or insignificant? Did they not move God to descend to human nature and visit it, since humanity was in so miserable and unhappy a state?

-- CCC 457

Art: Adoration of the Wise Men, Murillo