'Unloose' in the Bible

And he preached, saying, There cometh after me he that is mightier than I, the latchet of whose shoes I am not worthy to stoop down and unloose.

John answered, saying unto them all, I indeed baptize you with water; but there cometh he that is mightier than I, the latchet of whose shoes I am not worthy to unloose: he shall baptize you in the Holy Spirit and in fire:

even he that cometh after me, the latchet of whose shoe I am not worthy to unloose.

And as John was fulfilling his course, he said, What suppose ye that I am? I am not he . But behold, there cometh one after me the shoes of whose feet I am not worthy to unloose.