John 15:5-6

John 15:5-6. 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.

The vine must either bear fruit or be good for nothing; and you, believer, must be vitally united to Christ, and bear fruit in consequence of that union or else you will be like those fruitless vine-branches, of which our Lord said that "men gather them, and cast them into the fire and they are burned,"