Did either John or Jesus' other disciples truly understand Jesus to be saying that he would restore his own life back from the dead? If so, then how do you explain verse 22 below where John uses the passive voice verb "raised" to explain what he heard Jesus to be saying?
New International Version
19 Jesus answered them, “Destroy this temple, and I will raise it again in three days.”
20 They replied, “It has taken forty-six years to build this temple, and you are going to raise it in three days?” 21 But the temple he had spoken of was his body. 22 After he was raised (passive voice) from the dead, his disciples recalled what he had said. Then they believed the scripture and the words that Jesus had spoken.