Peter Preaches the Gospel
In Acts 2, we see Peter preaching to devout Jews. The Jewish people hear the disciples of Jesus speaking in different languages, praising God. They know these disciples are not speaking their own native languages. These devout Jews want to know what is happening. So Peter addresses what they are hearing with scripture to help them understand. This is how the Holy Spirit has Peter preach to these devout Jews.
But Peter, standing with the eleven, lifted up his voice and addressed them: “Men of Judea and all who dwell in Jerusalem, let this be known to you, and give ear to my words. For these people are not drunk, as you suppose, since it is only the third hour of the day. But this is what was uttered through the prophet Joel: “‘And in the last days it shall be, God declares, that I will pour out my Spirit on all flesh, and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams; even on my male servants and female servants in those days I will pour out my Spirit, and they shall prophesy. And I will show wonders in the heavens above and signs on the earth below, blood, and fire, and vapor of smoke; the sun shall be turned to darkness and the moon to blood, before the day of the Lord comes, the great and magnificent day. And it shall come to pass that everyone who calls upon the name of the Lord shall be saved.’ “Men of Israel, hear these words: Jesus of Nazareth, a man attested to you by God with mighty works and wonders and signs that God did through him in your midst, as you yourselves know— this Jesus, delivered up according to the definite plan and foreknowledge of God, you crucified and killed by the hands of lawless men. God raised him up, loosing the pangs of death, because it was not possible for him to be held by it. For David says concerning him, “‘I saw the Lord always before me, for he is at my right hand that I may not be shaken; therefore my heart was glad, and my tongue rejoiced; my flesh also will dwell in hope. For you will not abandon my soul to Hades, or let your Holy One see corruption. You have made known to me the paths of life; you will make me full of gladness with your presence.’ “Brothers, I may say to you with confidence about the patriarch David that he both died and was buried, and his tomb is with us to this day. Being therefore a prophet, and knowing that God had sworn with an oath to him that he would set one of his descendants on his throne, he foresaw and spoke about the resurrection of the Christ, that he was not abandoned to Hades, nor did his flesh see corruption. This Jesus God raised up, and of that we all are witnesses. Being therefore exalted at the right hand of God, and having received from the Father the promise of the Holy Spirit, he has poured out this that you yourselves are seeing and hearing. For David did not ascend into the heavens, but he himself says, “‘The Lord said to my Lord, “Sit at my right hand, until I make your enemies your footstool. ”’Let all the house of Israel therefore know for certain that God has made him both Lord and Christ, this Jesus whom you crucified.” Now when they heard this they were cut to the heart, and said to Peter and the rest of the apostles, “Brothers, what shall we do?” And Peter said to them, “Repent and be baptized every one of you in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit. For the promise is for you and for your children and for all who are far off, everyone whom the Lord our God calls to himself.” And with many other words he bore witness and continued to exhort them, saying, “Save yourselves from this crooked generation.” So those who received his word were baptized, and there were added that day about three thousand souls. And they devoted themselves to the apostles’ teaching and the fellowship, to the breaking of bread and the prayers. And awe came upon every soul, and many wonders and signs were being done through the apostles. And all who believed were together and had all things in common. And they were selling their possessions and belongings and distributing the proceeds to all, as any had need. And day by day, attending the temple together and breaking bread in their homes, they received their food with glad and generous hearts, praising God and having favor with all the people. And the Lord added to their number day by day those who were being saved.
Acts 2:14-47 NASB
This section shows us Peter pulling from scripture they knew, to preach the gospel to them. It shows the response that people who believe are supposed to have. We see the new covenant promise being spoken about in scripture, then we see them living it. We see all those who believed were together and had all things in common. They began selling their property and possessions and were sharing them with all, as anyone might have needed. We also see day by day, they continued with one mind in the temple and breaking bread from house to house. They were taking their meals together with gladness and sincerity of heart, praising God and having favor with all the people. This was prophesied in Jeremiah. This is how disciples of Jesus who are in covenant with God are to live.
They shall be My people, and I will be their God; and I will give them one heart and one way, that they may fear Me always, for their own good and for the good of their children after them. I will make an everlasting covenant with them that I will not turn away from them, to do them good; and I will put the fear of Me in their hearts so that they will not turn away from Me. I will rejoice over them to do them good and will faithfully plant them in this land with all My heart and with all My soul.
Jeremiah 32:38-41 NASB
We see these people in Acts 2 fulfilling these prophecies. As disciples of Jesus, we need to be imitators of these people. Their lives show us how to take part in the new covenant promises.
To recap... We see Peter preached from the prophets at the beginning of Acts 2, and later on, he declared what the people needed to do to partake of the promises God is offering to people.
Here is a link to study more on the New Covenant promises.
https://www.1heart1mind.com/being-one-heart-one-mind
References::
Scripture quotations taken from the NASB® 1995 - New American Standard Bible®, Copyright © 1960, 1971, 1977, 1995 by The Lockman Foundation. Used by permission. All rights reserved. www.Lockman.org”