First Reading: 2 Samuel 7:4-5a, 12-14a, 16
4 But that same night the word of the LORD came to Nathan,
5 "Go and tell my servant David, `Thus says the LORD: Would you build me a house to dwell in?
12 When your days are fulfilled and you lie down with your fathers, I will raise up your offspring after you, who shall come forth from your body, and I will establish his kingdom.
13 He shall build a house for my name, and I will establish the throne of his kingdom for ever.
14 I will be his father, and he shall be my son. When he commits iniquity, I will chasten him with the rod of men, with the stripes of the sons of men;
16 And your house and your kingdom shall be made sure for ever before me; your throne shall be established for ever.'"
Psalm: Psalms 89:2-5, 27,29
2 I will sing of thy steadfast love, O LORD, for ever; with my mouth I will proclaim thy faithfulness to all generations.
3 For thy steadfast love was established for ever, thy faithfulness is firm as the heavens.
4 Thou hast said, "I have made a covenant with my chosen one, I have sworn to David my servant:
5 `I will establish your descendants for ever, and build your throne for all generations.'"
27 He shall cry to me, `Thou art my Father, my God, and the Rock of my salvation.'
29 My steadfast love I will keep for him for ever, and my covenant will stand firm for him.
Second Reading: Romans 4:13, 16-18, 22
13 The promise to Abraham and his descendants, that they should inherit the world, did not come through the law but through the righteousness of faith.
16 That is why it depends on faith, in order that the promise may rest on grace and be guaranteed to all his descendants -- not only to the adherents of the law but also to those who share the faith of Abraham, for he is the father of us all,
17 as it is written, "I have made you the father of many nations" -- in the presence of the God in whom he believed, who gives life to the dead and calls into existence the things that do not exist.
18 In hope he believed against hope, that he should become the father of many nations; as he had been told, "So shall your descendants be."
22 That is why his faith was "reckoned to him as righteousness."
Gospel: Matthew 1:16, 18-21, 24a
16 and Jacob the father of Joseph the husband of Mary, of whom Jesus was born, who is called Christ.
18 Now the birth of Jesus Christ took place in this way. When his mother Mary had been betrothed to Joseph, before they came together she was found to be with child of the Holy Spirit;
19 and her husband Joseph, being a just man and unwilling to put her to shame, resolved to divorce her quietly.
20 But as he considered this, behold, an angel of the Lord appeared to him in a dream, saying, "Joseph, son of David, do not fear to take Mary your wife, for that which is conceived in her is of the Holy Spirit;
21 she will bear a son, and you shall call his name Jesus, for he will save his people from their sins."
24 When Joseph woke from sleep, he did as the angel of the Lord commanded him; he took his wife.
Gospel: Luke 2:41-51a
41 And his parents went every year to Jerusalem, at the solemn day of the pasch,
42 And when he was twelve years old, they going up into Jerusalem, according to the custom of the feast,
43 And having fulfilled the days, when they returned, the child Jesus remained in Jerusalem; and his parents knew it not.
44 And thinking that he was in the company, they came a day's journey, and sought him among their kinsfolks and acquaintance.
45 And not finding him, they returned into Jerusalem, seeking him.
46 And it came to pass, that, after three days, they found him in the temple, sitting in the midst of the doctors, hearing them, and asking them questions.
47 And all that heard him were astonished at his wisdom and his answers.
48 And seeing him, they wondered. And his mother said to him: Son, why hast thou done so to us? behold thy father and I have sought thee sorrowing.
49 And he said to them: How is it that you sought me? did you not know, that I must be about my father's business?
50 And they understood not the word that he spoke unto them.
51 And he went down with them, and came to Nazareth, and was subject to them.