Act 2
37 Now when they heard this, they were cut to the heart, and said to Peter and the rest of the apostles, “Men and brethren, what shall we do?”

38 Then Peter said to them, “Repent, and let every one of you be baptized in the name of Jesus Christ for the [k]remission of sins; and you shall receive the gift of the Holy Spirit. 39 For the promise is to you and to your children, and to all who are afar off, as many as the Lord our God will call.”

The gospel needs a response. You will either reject it, or receive it. The people listening to Peter’s sermon received it.

This was not because Peter was an amazing preacher. It was because he was used by God and the Holy Spirit was flowing through him.