‘Now on the next day, which is the day after the Preparation, the chief priests and the Pharisees were gathered together to Pilate, saying, “Sir, we remember that that deceiver said while he was yet alive, ‘After three days I rise again'.” '
‘On the next day, which is the day after the Preparation.' An unusual phrase but necessary because during the Feast there would be a number of Sabbaths (the regular Sabbath and the festal sabbaths), and thus ‘on the sabbath' might have been misleading. Such a phrase can be used later (Matthew 28:1) because the position has already been made clear here. This may mean the day after the preparation for the Passover, and thus the very night that Jesus was crucified. Or it may rather refer to the day after the Friday (which was always called, and still is in Greece, ‘the preparation' (paraskeue)) which fell in Passover week. It was thus the Sabbath. This would not, however, be breaching the Sabbath. Pilate was within a Sabbath day's journey and the issue was religiously important as it was theoretically dealing with a false prophet. They would, however, have avoided entering Pilate's residence.
‘Were gathered together.' We have already seen that in Matthew this often has a sinister significance suggesting a gathering together in antagonism against Jesus. So even after His death they are still seen as ‘gathering together' against Him.
The unusual (for Matthew) conjunction of the Chief Priests and the Pharisees suggests that the prime movers here were certain of the Pharisees. They had possibly gathered in their synagogue full of satisfaction at what they had ‘accomplished' and had suddenly been faced up with a disturbing possibility, that those wretched disciples of Jesus would steal the body of Jesus and then pretend that He had risen. It revealed something about the state of their own minds that they took it seriously. Had they thought about it they must have known that such an action would not, of course, deceive most people but they were men with a guilty conscience (Jesus had that effect on people), and were clearly worried that something unusual might happen (compare Herod's fear about the rising of John the Baptist). It is doubtful if they were worried that it might deceive a few fanatics among those unreliable Galilaeans. So they took themselves off to the Chief Priests who had been responsible for all the negotiations with Pilate, and put the matter to them, and managed to convince them of the danger. And then together they went to Pilate. It was such an absurd idea that we can only assume that they believed it because of the state of their consciences and because of their fear of the power of Jesus and of what He had said during His trial. It is quite likely that they had an uneasy feeling that something unusual might happen that they could not explain. And as they knew that Jesus could not possibly rise before the Last Day all that they could think was that it might involve the disciples.
“Sir, we remember that that deceiver said while he was yet alive, ‘After three days I rise again'.” Arriving at Pilate's palace they spoke these memorable words. Pilate must have been amazed. He would hardly have taken the idea seriously. To him people just did not rise again, especially when they had been crucified. He could probably hardly believe what he was hearing. This is, however, testimony to the fact that Jesus had in fact said these words, or something similar (all their actions had been based on distorted words of Jesus). Note their description of Jesus as ‘that deceiver'. This may have been a reaction to precisely what He had accused them of when He had accused them of being deceivers like the Devil (John 8:41-47). But it was also sowing in Pilate's mind the idea of deceit, and of some grand deception. They wanted him to think that Jesus' followers (cowering away behind locked doors) had no scruples and could get up to anything.
Some have suggested that as such words had only been spoken privately to His disciples they could not have been known to the Chief Priests and Pharisees. But we must remember that a thorough (negative) investigation had been made into what Jesus had said at various times, and that they would have had as sources a number of lapsed disciples, and indeed even Judas himself. That would explain why the statement was still fresh in their minds. Their fear was probably not that large numbers of people would be deceived, but that enough might be to make things decidedly inconvenient, and especially that it might encourage Jesus' supporters in their errors of whom they knew that there were a great many (as with John the Baptist).