As the apostles began their ministry, the apostle Peter preached the first sermon of the Good News of Jesus the Christ to the Jews. He used the keys of the Kingdom to open a way for God’s lost children to come home.
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 (Acts 2:38–41).