Acts 2:40-41

40Peter also told them many other things. He continued to speak strongly to them. He told them to be careful and he said, ‘People who are alive today do not do what is right. Save yourselves from the punishment that God will send on them.’

41Many of the people who listened to Peter believed his message. So the apostles baptized those people. About three thousand people who now believed in Jesus joined the group that same day.