20"Whoever sacrifices to any god, save to the LORD only, shall be utterly destroyed. 21"You shall not wrong a stranger or oppress him, for you were strangers in the land of Egypt. 22You shall not afflict any widow or orphan. 23If you do afflict them, and they cry out to me, I will surely hear their cry; 24and my wrath will burn, and I will kill you with the sword, and your wives shall become widows and your children fatherless. 25"If you lend money to any of my people with you who is poor, you shall not be to him as a creditor, and you shall not exact interest from him. 26If ever you take your neighbor's garment in pledge, you shall restore it to him before the sun goes down;

Responsorial Psalm Psalms 18:2-4, 47, 51

1I love thee, O LORD, my strength. 2The LORD is my rock, and my fortress, and my deliverer, my God, my rock, in whom I take refuge, my shield, and the horn of my salvation, my stronghold. 3I call upon the LORD, who is worthy to be praised, and I am saved from my enemies. 46The LORD lives; and blessed be my rock, and exalted be the God of my salvation, 50Great triumphs he gives to his king, and shows steadfast love to his anointed, to David and his descendants for ever.

Second Reading 1 Thessalonians 1:5-10

5for our gospel came to you not only in word, but also in power and in the Holy Spirit and with full conviction. You know what kind of men we proved to be among you for your sake. 6And you became imitators of us and of the Lord, for you received the word in much affliction, with joy inspired by the Holy Spirit; 7so that you became an example to all the believers in Macedo'nia and in Acha'ia. 8For not only has the word of the Lord sounded forth from you in Macedo'nia and Acha'ia, but your faith in God has gone forth everywhere, so that we need not say anything. 9For they themselves report concerning us what a welcome we had among you, and how you turned to God from idols, to serve a living and true God, 10and to wait for his Son from heaven, whom he raised from the dead, Jesus who delivers us from the wrath to come.

Gospel Matthew 22:34-40

34But when the Pharisees heard that he had silenced the Sad'ducees, they came together. 35And one of them, a lawyer, asked him a question, to test him. 36"Teacher, which is the great commandment in the law?" 37And he said to him, "You shall love the Lord your God with all your heart, and with all your soul, and with all your mind. 38This is the great and first commandment. 39And a second is like it, You shall love your neighbor as yourself. 40On these two commandments depend all the law and the prophets."