You know what Jesus meant when He said this; but the disciples said to themselves, "He says this 'because we have brought no bread.'" When Jesus saw that they did not comprehend Him, He said: "How is it that ye do not understand that I spake it not to you concerning bread, that ye should beware of the leaven of the Pharisees and of the Sadducees?" "Then understood they how that He bade them not beware of the leaven of bread, but of the doctrine of the Pharisees and of the Sadducees." [1] Undoubtedly, there were several among them whose testimony was becoming firm and unwavering. At any rate, we learn that just a few days later, the chief apostle gave evidence in words that could not be misunderstood, of his sure conviction that Christ was indeed the Son of the Living God. [Sidenote: Peter's Memorable Testimony.] They had gone northward to Caesarea Philippi at the foot of Mount Hermon. Here, Jesus, one day, asked His disciples this question: "Who do men say that I, the Son of man, am?" They answered, "Some say thou art John the Baptist. Some say thou art Elias, and others, Jeremias, or one of the prophets." Then Jesus said, "But who say ye that I am?" Simon Peter answered, "_Thou art the Christ, the Son of the Living God_." There is no hesitancy now, no fear, no wavering, no "we believe and are sure;" but the unqualified and direct expression of a soul convinced of the truth: "Thou art the Christ, the Son of the Living God." "_Blessed_ art thou, Simon Barjona," said Jesus, "for flesh and blood hath not revealed this unto thee, but my Father which is in heaven." [2] At last Jesus discovers the assurance in Peter for which He has been laboring many months to develop. He now knows that Peter's spirit has received divine assurance that all these miracles and mighty manifestations have been wrought by the power of God through His only Begotten Son. He knows that the testimony borne by Peter comes not from men but from God, and no matter what men may think or do, Peter will stand firm as a rock on this testimony. "I say unto thee," continued Jesus, "that thou art Peter, and upon this rock will I build my church; and the gates of hell shall not prevail against it." [Sidenote: Christ's Church Built Upon Revelation.] By that He meant that as Simon's name "Peter" means rock, so this testimony that comes by revelation shall be the rock upon which Christ's Church shall be built. Because when one receives such divine assurance in his soul that the gospel is true, no views of men, nor waves of temptation nor "the power of hell" can deprive him of it. You remember when Jesus first met Simon, He said He should be called "the Rock." Ever since then it would seem that Jesus has been waiting for the time when Peter's testimony would be like his character--expressive and firm. That time has come; and Peter is now prepared to receive a greater responsibility. [Sidenote: Keys of the Kingdom]