Luke 3:16 in the World English Bible
John answered them all, “I indeed baptize you with water, but he comes who is mightier than I, the strap of whose sandals I am not worthy to loosen. He will baptize you in the Holy Spirit and fire.
Context
15 And as the people were in expectation, and all men mused in their hearts of John, whether he were the Christ, or not;
16 John answered, saying unto them all, I indeed baptize you with water; but one mightier than I cometh, the latchet of whose shoes I am not worthy to unloose: he shall baptize you with the Holy Ghost and with fire:
17 Whose fan is in his hand, and he will throughly purge his floor, and will gather the wheat into his garner; but the chaff he will burn with fire unquenchable.