Pilate could not wash away his guilt for Jesus' death no matter how hard he tried to. Nor can we. Jesus' death is the means to our salvation and so we are all guilty of His innocent blood. It does us no good to claim that we had no other choice. Pointing the finger at someone else to blame them for our own choice is simply not effective in the face of an all-knowing God. We are guilty, just as Pilate continued to be guilty for Jesus' death, regardless of whether we admit that guilt or not.