[Sidenote: An Example.] "So after He had washed their feet, and had taken his garments, and was set down again. He said unto them: Know ye what I have done to you? Ye call me Master and Lord; and ye say well, for so I am. If I then, your Lord and Master, have washed your feet; ye also ought to wash one another's feet. For I have given you an example, that ye should do as I have done to you." Thus did these twelve men receive in an impressive and practical manner, the divine lesson of service. Thus did they learn that those who were greatest among them were really the servants of all. Indeed, in the Church of Christ, there are no masters and no servants, but all working for every one and each one for all. [Sidenote: "One of You Shall Betray Me."] Immediately following this impressive and sacred ceremony, the full significance of which very few understand, the Savior said, "One of you shall betray me." This announcement cast a gloom over all. To make it caused "trouble" to come over Christ's "spirit;" and to hear it, made all "exceeding sorrowful." [3] They began to inquire among themselves which one of them should be so faithless; and soon each asked the Master, "Lord, is it I?" Judas, last of all answered and said, "Lord, is it I?" Jesus' answer, "Thou hast said," must not have been heard by the others, because Peter beckoned to John to ask the Master "who it should be of whom he spoke." Jesus replied, also in a quiet manner, "He it is, to whom I shall give a sop, when I have dipped it." [Sidenote: Judas Iscariot.] When he had dipped the sop, he handed it to Judas Iscariot. Peter and John, then, knew who the traitor was; but the others probably did not; for they wondered what Jesus meant when He said to Judas: "That thou doest do quickly." LOYALTY AS PETER FELT IT After the traitor went out into the night--oh such a night for him! Jesus continued to teach and to comfort the Eleven. [Sidenote: Love One Another.] "A new commandment I give unto you," He said, "That ye love one another; as I have loved you, that ye also love one another." Among other things, He said, referring to His approaching death, "Whither I go ye cannot come." This stirred Peter's love and he inquired, "Lord, why cannot I follow Thee now? I will lay down my life for Thy sake." [4] [Sidenote: Peter to Be Tried.] "Simon, Simon, behold Satan hath desired you that he may sift you as wheat. But I have prayed for thee that thy faith fail not; and when thou art converted, [that is, "brought back afresh as a penitent disciple"] strengthen thy brethren." [5] This grieved Peter very deeply. To think that his Master would even suspect that he, _Peter_, would even weaken in his steadfastness to his Lord! (It is significant that the Lord called him by his old name, _Simon_). Peter protested, saying, "Lord, I am ready to go with thee, both into prison, and to death." [6] [Sidenote: A Prophecy.]