I am the vine, ye [are] the branches: He that abideth in me, and I in him, the same bringeth forth much fruit: for without me ye can do nothing.
If a man abide not in me, he is cast forth as a branch, and is withered; and men gather them, and cast [them] into the fire, and they are burned.
If ye abide in me, and my words abide in you, ye shall ask what ye will, and it shall be done unto you.
Herein is my Father glorified, that ye bear much fruit; so shall ye be my disciples. - John 15:4-8
You are confusing two scriptures. Christ described a vine in the book of John to describe the fruits of ministry. Paul in the letter to Galations described the Comforter sent by Jesus.
Jesus described himself in Matthew.
Mat 10:34 Think not that I am come to send peace on earth: I came not to send peace, but a sword.
Mat 10:35 For I am come to set a man at variance against his father, and the daughter against her mother, and the daughter in law against her mother in law.
Mat 10:36 And a man's foes [shall be] they of his own household.