FIRST READING: Jeremiah 31: 31 - 34
31 Behold the days shall come, saith the Lord, and I will make a new covenant with the house of Israel, and with the house of Juda:
32 Not according to the covenant which I made with their fathers, in the day that I took them by the hand to bring them out of the land of Egypt: the covenant which they made void, and I had dominion over them, saith the Lord.
33 But this shall be the covenant that I will make with the house of Israel, after those days, saith the Lord: I will give my law in their bowels, and I will write it in their heart: and I will be their God, and they shall be my people.
34 And they shall teach no more every man his neighbour, and every man his brother, saying: Know the Lord: for all shall know me from the least of them even to the greatest, saith the Lord: for I will forgive their iniquity, and I will remember their sin no more.
PSALM: Psalms 51: 12 - 15, 18 - 19
12 Create a clean heart in me, O God: and renew a right spirit within my bowels.
13 Cast me not away from thy face; and take not thy holy spirit from me.
14 Restore unto me the joy of thy salvation, and strengthen me with a perfect spirit.
15 I will teach the unjust thy ways: and the wicked shall be converted to thee.
18 For if thou hadst desired sacrifice, I would indeed have given it: with burnt offerings thou wilt not be delighted.
19 A sacrifice to God is an afflicted spirit: a contrite and humbled heart, O God, thou wilt not despise..
GOSPEL: Matthew 16: 13 - 23
13 And Jesus came into the quarters of Caesarea Philippi: and he asked his disciples, saying: Whom do men say that the Son of man is?
14 But they said: Some John the Baptist, and other some Elias, and others Jeremias, or one of the prophets.
15 Jesus saith to them: But whom do you say that I am?
16 Simon Peter answered and said: Thou art Christ, the Son of the living God.
17 And Jesus answering, said to him: Blessed art thou, Simon Bar-Jona: because flesh and blood hath not revealed it to thee, but my Father who is in heaven.
18 And I say to thee: That thou art Peter; and upon this rock I will build my church, and the gates of hell shall not prevail against it.
19 And I will give to thee the keys of the kingdom of heaven. And whatsoever thou shalt bind upon earth, it shall be bound also in heaven: and whatsoever thou shalt loose upon earth, it shall be loosed also in heaven.
20 Then he commanded his disciples, that they should tell no one that he was Jesus the Christ.
21 From that time Jesus began to shew to his disciples, that he must go to Jerusalem, and suffer many things from the ancients and scribes and chief priests, and be put to death, and the third day rise again.
22 And Peter taking him, began to rebuke him, saying: Lord, be it far from thee, this shall not be unto thee.
23 Who turning, said to Peter: Go behind me, Satan, thou art a scandal unto me: because thou savourest not the things that are of God, but the things that are of men.