As John was completing his course, he said, ‘Who do you suppose I am? I am not that One. But there is One coming after me whose sandals I am not worthy to untie.’
KJV
And as John fulfilled his course, he said, Whom think ye that I am? I am not [he]. But, behold, there cometh one after me, whose shoes of [his] feet I am not worthy to loose.
ASV
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.