The First Reading - Acts 4:8-13 (ESV)
8 Then Peter, filled with the Holy Spirit, said to them, “Rulers of the people and elders, 9 if we are being examined today concerning a good deed done to a crippled man, by what means this man has been healed, 10 let it be known to all of you and to all the people of Israel that by the name of Jesus Christ of Nazareth, whom you crucified, whom God raised from the dead—by him this man is standing before you well. 11 This Jesus[a] is the stone that was rejected by you, the builders, which has become the cornerstone.[b] 12 And there is salvation in no one else, for there is no other name under heaven given among men[c] by which we must be saved.”13 Now when they saw the boldness of Peter and John, and perceived that they were uneducated, common men, they were astonished. And they recognized that they had been with Jesus.
The Epistle - 2 Peter 1:1-15 (ESV)
1 Simeon Peter, a servant and apostle of Jesus Christ, To those who have obtained a faith of equal standing with ours by the righteousness of our God and Savior Jesus Christ: 2 May grace and peace be multiplied to you in the knowledge of God and of Jesus our Lord.3 His divine power has granted to us all things that pertain to life and godliness, through the knowledge of him who called us to his own glory and excellence, 4 by which he has granted to us his precious and very great promises, so that through them you may become partakers of the divine nature, having escaped from the corruption that is in the world because of sinful desire. 5 For this very reason, make every effort to supplement your faith with virtue, and virtue with knowledge, 6 and knowledge with self-control, and self-control with steadfastness, and steadfastness with godliness,7 and godliness with brotherly affection, and brotherly affection with love. 8 For if these qualities are yours and are increasing, they keep you from being ineffective or unfruitful in the knowledge of our Lord Jesus Christ. 9 For whoever lacks these qualities is so nearsighted that he is blind, having forgotten that he was cleansed from his former sins. 10 Therefore, brothers, be all the more diligent to confirm your calling and election, for if you practice these qualities you will never fall. 11 For in this way there will be richly provided for you an entrance into the eternal kingdom of our Lord and Savior Jesus Christ. 12 Therefore I intend always to remind you of these qualities, though you know them and are established in the truth that you have. 13 I think it right, as long as I am in this body, to stir you up by way of reminder, 14 since I know that the putting off of my body will be soon, as our Lord Jesus Christ made clear to me. 15 And I will make every effort so that after my departure you may be able at any time to recall these things.
The Holy Gospel - Mark 8:27-35 (ESV)
27 And Jesus went on with his disciples to the villages of Caesarea Philippi. And on the way he asked his disciples, “Who do people say that I am?” 28 And they told him, “John the Baptist; and others say, Elijah; and others, one of the prophets.” 29 And he asked them, “But who do you say that I am?” Peter answered him, “You are the Christ.” 30 And he strictly charged them to tell no one about him. 31 And he began to teach them that the Son of Man must suffer many things and be rejected by the elders and the chief priests and the scribes and be killed, and after three days rise again. 32 And he said this plainly. And Peter took him aside and began to rebuke him. 33 But turning and seeing his disciples, he rebuked Peter and said, “Get behind me, Satan! For you are not setting your mind on the things of God, but on the things of man.” 34 And calling the crowd to him with his disciples, he said to them, “If anyone would come after me, let him deny himself and take up his cross and follow me. 35 For whoever would save his life will lose it, but whoever loses his life for my sake and the gospel's will save it.