And he preached, saying, "There comes One after me who is mightier than I, whose sandal strap I am not worthy to stoop down and loose.
Mark 1:7
Surrounding context
1:6 Now John was clothed with camel's hair and with a leather belt around his waist, and he ate locusts and wild honey.
1:7 And he preached, saying, "There comes One after me who is mightier than I, whose sandal strap I am not worthy to stoop down and loose.
1:8 I indeed baptized you with water, but He will baptize you with the Holy Spirit."