Acts 2:40-43

40 With many other words he testified, and exhorted them, saying, "Save yourselves from this crooked generation!"

41 Then those who gladly received his word were baptized. There were added that day about three thousand souls.  42 They continued steadfastly in the apostles' teaching and fellowship, in the breaking of bread, and prayer.  43 Fear came on every soul, and many wonders and signs were done through the apostles.