John 13:33-38

33 Little children, yet a little while I am with you. You will seek me; and as I said to the Jews so now I say to you, 'Where I am going you cannot come.'

34 A new commandment I give to you, that you love one another; even as I have loved you, that you also love one another.

35 By this all men will know that you are my disciples, if you have love for one another."

36 Simon Peter said to him, "Lord, where are you going?" Jesus answered, "Where I am going you cannot follow me now; but you shall follow afterward."

37 Peter said to him, "Lord, why cannot I follow you now? I will lay down my life for you."

38 Jesus answered, "Will you lay down your life for me? Truly, truly, I say to you, the cock will not crow, till you have denied me three times.