First Reading Isaiah 1:10-17

10Hear the word of the LORD, you rulers of Sodom! Give ear to the teaching of our God, you people of Gomor'rah! 11"What to me is the multitude of your sacrifices? says the LORD; I have had enough of burnt offerings of rams and the fat of fed beasts; I do not delight in the blood of bulls, or of lambs, or of he-goats. 12"When you come to appear before me, who requires of you this trampling of my courts? 13Bring no more vain offerings; incense is an abomination to me. New moon and sabbath and the calling of assemblies -- I cannot endure iniquity and solemn assembly. 14Your new moons and your appointed feasts my soul hates; they have become a burden to me, I am weary of bearing them. 15When you spread forth your hands, I will hide my eyes from you; even though you make many prayers, I will not listen; your hands are full of blood. 16Wash yourselves; make yourselves clean; remove the evil of your doings from before my eyes; cease to do evil, 17learn to do good; seek justice, correct oppression; defend the fatherless, plead for the widow.

Responsorial Psalm Psalms 50:8-9, 16-17, 21, 23

8I do not reprove you for your sacrifices; your burnt offerings are continually before me. 9I will accept no bull from your house, nor he-goat from your folds. 16But to the wicked God says: "What right have you to recite my statutes, or take my covenant on your lips? 17For you hate discipline, and you cast my words behind you. 21These things you have done and I have been silent; you thought that I was one like yourself. But now I rebuke you, and lay the charge before you. 23He who brings thanksgiving as his sacrifice honors me; to him who orders his way aright I will show the salvation of God!"

Gospel Matthew 10:34--11:1

10 34"Do not think that I have come to bring peace on earth; I have not come to bring peace, but a sword. 35For I have come to set a man against his father, and a daughter against her mother, and a daughter-in-law against her mother-in-law; 36and a man's foes will be those of his own household. 37He who loves father or mother more than me is not worthy of me; and he who loves son or daughter more than me is not worthy of me; 38and he who does not take his cross and follow me is not worthy of me. 39He who finds his life will lose it, and he who loses his life for my sake will find it. 40"He who receives you receives me, and he who receives me receives him who sent me. 41He who receives a prophet because he is a prophet shall receive a prophet's reward, and he who receives a righteous man because he is a righteous man shall receive a righteous man's reward. 42And whoever gives to one of these little ones even a cup of cold water because he is a disciple, truly, I say to you, he shall not lose his reward." 11 1And when Jesus had finished instructing his twelve disciples, he went on from there to teach and preach in their cities.