Luke 3:16 in the King James Version
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:
Context
15 As the people were in expectation, and all men reasoned in their hearts concerning John, whether perhaps he was the Christ,
16 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.
17 His winnowing fan is in his hand, and he will thoroughly cleanse his threshing floor, and will gather the wheat into his barn; but he will burn up the chaff with unquenchable fire.”