John 13:31-38 (ESV)

³¹ When he had gone out, Jesus said, “Now is the Son of Man glorified, and God is glorified in him. ³² If God is glorified in him, God will also glorify him in himself, and glorify him at once. ³³ Little children, yet a little while I am with you. You will seek me, and just as I said to the Jews, so now I also say to you, ‘Where I am going you cannot come.’ ³⁴ A new commandment I give to you, that you love one another: just as I have loved you, you also are to love one another. ³⁵ By this all people 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 him, “Where I am going you cannot follow me now, but you will follow afterward.”³⁷ Peter said to him, “Lord, why can I not 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 rooster will not crow till you have denied me three times.