The Apostle John in his first letter writes some intriguing words, "Beloved, I am writing you no new commandment, but an old commandment that you had from the beginning. The old commandment is the word that you have heard. At the same time, it is a new commandment that I am writing to you, which is true in him and in you." The old commandment he is referring to is the "Shema," the confession of faith in the one true God to whom we owe full allegiance and devotion. In answer to a scribe's question in Mark 12:28-33 as to what is the greatest commandment, Jesus answers, "Love the Lord your God with all your heart and with all your soul, with all your mind, and with all your strength. He also relates the second greatest commandment: "Love your neighbor as yourself." (This latter commandment is a phrase attached to a list of various laws in Leviticus 19.) The new component is Jesus' own love for his disciples. He loves us so much that he laid down his life for us on the cross. John 13:1-5, 34f records John's own experience of the love of Jesus shown by his washing their feet. In this context he gives the new commandment, "A new command I give you: Love one another as I have loved you, so you must love one another. By this everyone will know that you are my disciples, if you love one another."