Gospel for Tuesday of Holy WeekJohn 13:21-38:
When Jesus had said these things, he was troubled in spirit; and he testified, and said: Amen, amen I say to you, one of you shall betray me. The disciples therefore looked one upon another, doubting of whom he spoke. Now there was leaning on Jesus' bosom one of his disciples, whom Jesus loved. Simon Peter therefore beckoned to him, and said to him: Who is it of whom he speaketh? He therefore, leaning on the breast of Jesus, saith to him: Lord, who is it?
Jesus answered: He it is to whom I shall reach bread dipped. And when he had dipped the bread, he gave it to Judas Iscariot, the son of Simon.And after the morsel, Satan entered into him. And Jesus said to him: That which thou dost, do quickly. Now no man at the table knew to what purpose he said this unto him. For some thought, because Judas had the purse, that Jesus had said to him: Buy those things which we have need of for the festival day: or that he should give something to the poor. He therefore having received the morsel, went out immediately. And it was night.
When he therefore was gone out, Jesus said: Now is the Son of man glorified, and God is glorified in him. If God be glorified in him, God also will glorify him in himself; and immediately will he glorify him. Little children, yet a little while I am with you. You shall seek me; and as I said to the Jews: Whither I go you cannot come; so I say to you now. A new commandment I give unto you: That you love one another, as I have loved you, that you also love one another. By this shall all men know that you are my disciples, if you have love one for another.
Simon Peter saith to him: Lord, whither goest thou? Jesus answered: Whither I go, thou canst not follow me now; but thou shalt follow hereafter. Peter saith to him: Why cannot I follow thee now? I will lay down my life for thee. Jesus answered him: Wilt thou lay down thy life for me? Amen, amen I say to thee, the cock shall not crow, till thou deny me thrice.