36 Therefore let all the house of Israel know assuredly, that God hath made the same Jesus, whom ye have crucified, both Lord and Christ.
37 Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do?
38 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.(Spirit)
39 For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call.
40 And with many other words did he testify and exhort, saying, Save yourselves from this untoward generation.
41 Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls.
42 And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers.
43 And fear came upon every soul: and many wonders and signs were done by the apostles.
44 And all that believed were together, and had all things common;
45 And sold their possessions and goods, and parted them to all men, as every man had need.
46 And they, continuing daily with one accord in the temple, and breaking bread from house to house, did eat their meat with gladness and singleness of heart,
47 Praising God, and having favour with all the people. And the Lord added to the church daily such as should be saved.
Peter speaks, 3,000 are saved in one day. Only God knows how many are becoming born-again throughout the world. Three thousand is an amazing number of people who gave their life to Jesus and in turn received God’s Holy Spirit to dwell within.
This meant that 3,000 had to recognize their sin, they were pricked in their heart and gladly received his word. These were true born again believers and not false converts.
This truly is a miracle because the human heart is deceitfully wicked, but as God’s word states with man things are impossible but with God all things are possible.
Jeremiah 17:9 The heart is deceitful above all things, and desperately wicked: who can know it?
Romans 11:25 For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.