Luke 3:15

Now as the people were in expectation, and all reasoned in their hearts about John, whether he was the Christ or not,

Surrounding context

3:14 Likewise the soldiers asked him, saying, "And what shall we do?" So he said to them, "Do not intimidate anyone or accuse falsely, and be content with your wages."

3:15 Now as the people were in expectation, and all reasoned in their hearts about John, whether he was the Christ or not,

3:16 John answered, saying to all, "I indeed baptize you with water; but One mightier than I is coming, whose sandal strap I am not worthy to loose. He will baptize you with the Holy Spirit and fire.

Translation and sources