When you repeat something again to someone you reinforce its importance. When you reiterate a fact two times in the same dialog you are saying it is twice as important. In Matthew 26:54 Jesus said, "'How then will the Scriptures be fulfilled, which say that it must happen this way?'" In verse 56 he said, "'But all this has taken place to fulfill the Scriptures of the prophets.'" In the first verse he warns that "'all those who take up the sword shall perish by the sword." In the second he asks, "'Have you come out with swords and clubs to arrest Me?'" Jesus states that he is innocent saying, "'Every day I used to sit in the temple teaching and you did not seize Me'" (:55). He was then brought before the high priest and "they kept trying to obtain false testimony against Jesus, so that they might put Him to death. They did not find any, even though many false witnesses came forward" (Mt 26:59-60). Prophetic scripture says for Israel in Egypt to take a "lamb" (Ex 12:3) which is "unblemished" (:5). On the fourteenth day of the month it was to be killed (:6) and they were to "'take some of the blood and put it on the two doorposts and on the lintel of the houses'" (:7). "'The blood shall be a sign'" (:13). Israel's being delivered from Egypt's bondage on Passover is prophetic of Christ's crucifixion and resurrection for the forgiveness of our sins.
In Acts 1:16 Peter refers to Psalm 109:8 as "'the Scripture [which] had to be fulfilled'" on the same subject as stated in Matthew 26:54,56. In a similar way this reference is used prophetically to describe the trial before the temple officials. "For they have opened up the wicked and deceitful mouth against me; they have spoken against me with a lying tongue" (Ps 109:2). Finally two false witnesses "came forward" (Mt 26:60). The high priest "said to Him, 'Do You not answer? What is it that these men are testifying against You?' But Jesus kept silent" (:62-63). "Like a lamb that is led to slaughter . . . He did not open His mouth" (Isa 53:7). Then before Pilate "He did not answer him with regard to even a single charge, so the governor was quite amazed" (Mt 27:14). This is because Jesus is one "who committed no sin, nor was any deceit found in His mouth" (1Pe 2:22). He leaves "an example for you to follow in His steps" (:21). "While being reviled, He did not revile in return . . . but kept entrusting Himself to Him who judges righteously" (:23). Pilate's wife told him, "'Have nothing to do with that righteous Man; for last night I suffered greatly in a dream because of Him'" (Mt 27:19). Pilate responded saying, "'I am innocent of this Man's blood'" (:24).