After His resurrection, Jesus remained on earth for another 40 days, appearing to many people and preaching about the Kingdom of God. See Acts 1:3 He possibly did other miracles too. John states that Jesus did many things which were not recorded because there would have been too much to write. See John 21:25
[10 days after Jesus ascended into heaven, the Holy Spirit came during the feast of Pentecost. See Acts chapter 2 (Pentecost inferrs the number 50 - Pentecost was 50 days after Jesus' death and ressurection which fullfilled the feast of Passover)]
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