ActHch. ActsHechos, chaptercapítulo Acts of the ApostlesHechos de los Apóstoles, chaptercapítulo 2

Those, who were mekabel Besuras HaGeulah and welcomed his dvar, submitted to a tevilah of teshuva and there were added in that day nefashot (souls) beerech (approximately, dacht zich) shloshet alafim (three thousand).