Passage
ye call me, The Teacher and The Lord, and ye say well, for I am;
ye call me, The Teacher and The Lord, and ye say well, for I am;
John 13:11 for he knew him who is delivering him up; because of this he said, `Ye are not all clean.'
John 13:12 When, therefore, he washed their feet, and took his garments, having reclined (at meat) again, he said to them, `Do ye know what I have done to you?
John 13:13 ye call me, The Teacher and The Lord, and ye say well, for I am;
John 13:14 if then I did wash your feet--the Lord and the Teacher--ye also ought to wash one another's feet.
John 13:15 `For an example I gave to you, that, according as I did to you, ye also may do;
The verse centers on "call", "teacher", "lord", and "well". It is saying that the verse draws attention to "call" and "teacher", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 12's "When therefore he washed their feet and..." into verse 14's "if then I did wash your feet--the...", so "call" and "teacher" belong inside that flow. In John context, the local focus is the identity of Jesus, new birth, eternal life, and belief and unbelief.
A plain takeaway is to answer the verse's own emphasis on "call" and "teacher" with trust shaped by these words, not by a vague optimism outside the passage.