My master, a title of dignity given by the Jews to their doctors of the law and their distinguished teachers. It is sometimes applied to Christ (Matt. 23:7, 8; Mark 9:5 (R.V.); John 1:38, 49; 3:2; 6:25, etc.); also to John (3:26).
Rabbi
Two followers turn to Jesus with a question, Rabbi, “where dwellest thou?” John explains the word for his readers: “being interpreted, Master.” It means teacher, and it is how Nathanael greets him (“thou art the Son of God”) and how Nicodemus addresses him by night: “we know that thou art a teacher come from God.” Peter says it on the mountain, and Judas uses it when he comes with the kiss. Jesus himself speaks more carefully about the title. He warns against loving to be called Rabbi, since “one is your Master, even Christ; and all ye are brethren.”
12 verses
Matthew
Matthew 23:7
And greetings in the markets, and to be called of men, Rabbi, Rabbi.
Matthew 23:8
But be not ye called Rabbi: for one is your Master, even Christ; and all ye are brethren.
Matthew 26:25
Then Judas, which betrayed him, answered and said, Master, is it I? He said unto him, Thou hast said.
Matthew 26:49
And forthwith he came to Jesus, and said, Hail, master; and kissed him.
Mark
Mark 9:5
And Peter answered and said to Jesus, Master, it is good for us to be here: and let us make three tabernacles; one for thee, and one for Moses, and one for Elias.
Mark 11:21
And Peter calling to remembrance saith unto him, Master, behold, the fig tree which thou cursedst is withered away.
Mark 14:45
And as soon as he was come, he goeth straightway to him, and saith, Master, master; and kissed him.
John
John 1:38
Then Jesus turned, and saw them following, and saith unto them, What seek ye? They said unto him, Rabbi,(which is to say, being interpreted, Master,) where dwellest thou?
John 1:49
Nathanael answered and saith unto him, Rabbi, thou art the Son of God; thou art the King of Israel.
John 3:2
The same came to Jesus by night, and said unto him, Rabbi, we know that thou art a teacher come from God: for no man can do these miracles that thou doest, except God be with him.
John 4:31
In the mean while his disciples prayed him, saying, Master, eat.
John 9:2
And his disciples asked him, saying, Master, who did sin, this man, or his parents, that he was born blind?
From Easton's Bible Dictionary
Matthew George Easton, 1897
From Smith's Bible Dictionary
William Smith, 1884
a title of respect signifying master, teacher , given by the Jews to their doctors and teachers, and often addressed to our Lord. (Matthew 23:7,8; 26:25,49; Mark 9:6; 11:21; 14:45; John 1:38,49; 3:2,26; 4:31; 6:25; 9:2; 11:8) Another form of the title was Rabboni. (John 20:16) The titles were used with different degrees of honor; the lowest being rab, master then rabbi, my master ; next rabban, our master ; and greatest of all, Rabboni, my great master .