Then Jesus said:
“This is my command: Love one another as I have loved you. No one has greater love than this, that someone would lay down His life for His friends. You are my friends if you do what I command you.” — John 15:12-13

And C.S. Lewis said:
“A man who was merely a man and said the sort of things Jesus said would not be a great moral teacher. He would either be a lunatic — on the level with the man who says he is a poached egg — or else he would be the Devil of Hell.
“You must make your choice. Either this man was, and is, the Son of God, or else a madman or something worse.” – C.S. Lewis, Mere Christianity.