READING (Isaiah 1.10, 16-20, 27-28, 31)
The vision of Isaiah, son of Amoz, concerning Judah and Jerusalem. Hear the word of the Lord, you rulers of Sodom! Listen to the teaching of our God, you people of Gomorrah!
Wash yourselves; make yourselves clean; remove the evil of your doings from before my eyes; cease to do evil, learn to do good; seek justice, rescue the oppressed, defend the orphan, plead for the widow. Come now, let us argue it out, says the Lord: though your sins are like scarlet, they shall be like snow; though they are red like crimson, they shall become like wool.
If you are willing and obedient, you shall eat the good of the land; but if you refuse and rebel, you shall be devoured by the sword; for the mouth of the Lord has spoken. Zion shall be redeemed by justice, and those in her who repent, by righteousness. But rebels and sinners shall be destroyed together, and those who forsake the Lord shall be consumed.
The strong shall become like tinder, and their work like a spark; they and their work shall burn together, with no one to quench them.
RESPONSORIAL PSALM (Psalm 50)
R. To the upright I will show the saving power of God.
Not for your sacrifices do I rebuke you; your burnt offerings are continually before me. I will not accept a bull from your house, or goats from your folds. R.
What right have you to recite my statutes, or take my covenant on your lips? For you hate discipline, and you cast my words behind you. R.
These things you have done and I have been silent; you thought that I was one just like yourself. But now I rebuke you, and lay the charge before you. R.
Those who bring thanksgiving as their sacrifice honour me; to those who go the right way I will show the salvation of God. R.