However......if I dont have love for God and my fellow man I am loud,offensive,useless and vain.
1 John has some pretty strong words to say about Christians who don't love.
They walk in darkness, and do not know where they are going. 1 John 2:9, 11
They are a child of the devil 1 John 3:10
They abide in death 1 John 3:14
They are a murderer 1 John 3:15
They do not know God 1 John 4:8
They are liars and dont love God 1 John 4:20-21