Matthew 3:11-12

I indeed baptize you in water unto repentance, but he that comes after me is mightier than I, whose shoes I am not worthy to bear; he shall baptize you in the Holy Spirit and fire, whose fan is in his hand; and he will thoroughly purge his threshing floor and gather his wheat into the storehouse, but he will burn up the chaff with fire that shall never be quenched.