Is 42:1-4, 6-7 or Is 40:1-5, 9-11
Ps 29:1-2, 3-4, 3, 9-10
Acts 10:34-38 or Ti 2:11-14; 3:4-7
Lk 3:15-16, 21-22
Here is my servant whom I uphold,
my chosen one with whom I am pleased,
upon whom I have put my spirit
A voice cries out:
In the desert prepare the way of the LORD!
Make straight in the wasteland a highway for our God!
You know the word that he sent to the Israelites
as he proclaimed peace through Jesus Christ, who is Lord of all,
what has happened all over Judea,
beginning in Galilee after the baptism
that John preached,
how God anointed Jesus of Nazareth
with the Holy Spirit and power.
After all the people had been baptized
and Jesus also had been baptized and was praying,
heaven was opened and the Holy Spirit descended upon him
in bodily form like a dove.
And a voice came from heaven,
“You are my beloved Son;
with you I am well pleased.”
CATECHISM OF THE CATHOLIC CHURCH
The baptism of Jesus is on his part the acceptance and inauguration of his mission as God’s suffering Servant. He allows himself to be numbered among sinners; he is already “the Lamb of God, who takes away the sin of the world”. Already he is anticipating the “baptism” of his bloody death. Already he is coming to “fulfil all righteousness”, that is, he is submitting himself entirely to his Father’s will: out of love he consents to this baptism of death for the remission of our sins. The Father’s voice responds to the Son’s acceptance, proclaiming his entire delight in his Son. The Spirit whom Jesus possessed in fullness from his conception comes to “rest on him”. Jesus will be the source of the Spirit for all mankind. At his baptism “the heavens were opened” – the heavens that Adam’s sin had closed – and the waters were sanctified by the descent of Jesus and the Spirit, a prelude to the new creation.