First reading: Acts of the Apostles 2:14, 36-41
On the day of Pentecost Peter stood up with the Eleven and addressed the crowd in a loud voice: ‘The whole House of Israel can be certain that God has made this Jesus whom you crucified both Lord and Christ.’
Hearing this, they were cut to the heart and said to Peter and the apostles, ‘What must we do, brothers?’ ‘You must repent,’ Peter answered ‘and every one of you must be baptised in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit. The promise that was made is for you and your children, and for all those who are far away, for all those whom the Lord our God will call to himself.’ He spoke to them for a long time using many arguments, and he urged them, ‘Save yourselves from this perverse generation.’ They were convinced by his arguments, and they accepted what he said and were baptised. That very day about three thousand were added to their number.
Responsorial Psalm: Ps 22 (23)
The Lord is my shepherd: there is nothing I shall want.
The Lord is my shepherd;
there is nothing I shall want.
Fresh and green are the pastures
where he gives me repose.
Near restful waters he leads me,
to revive my drooping spirit.
The Lord is my shepherd: there is nothing I shall want.
He guides me along the right path;
he is true to his name.
If I should walk in the valley of darkness
no evil would I fear.
You are there with your crook and your staff;
with these you give me comfort.
The Lord is my shepherd: there is nothing I shall want.
You have prepared a banquet for me
in the sight of my foes.
My head you have anointed with oil;
my cup is overflowing.
The Lord is my shepherd: there is nothing I shall want.
Surely goodness and kindness shall follow me
all the days of my life.
In the Lord’s own house shall I dwell
for ever and ever.
The Lord is my shepherd: there is nothing I shall want.
Second Reading: 1 Peter 2:20-25
The merit, in the sight of God, is in bearing punishment patiently when you are punished after doing your duty.
This, in fact, is what you were called to do, because Christ suffered for you and left an example for you to follow the way he took. He had not done anything wrong, and there had been no perjury in his mouth. He was insulted and did not retaliate with insults; when he was tortured he made no threats but he put his trust in the righteous judge. He was bearing our faults in his own body on the cross, so that we might die to our faults and live for holiness; through his wounds you have been healed. You had gone astray like sheep but now you have come back to the shepherd and guardian of your souls.
Gospel Acclamation
Alleluia, alleluia!
I am the good shepherd, says the Lord;
I know my own sheep and my own know me.
Alleluia!