RAIDER said:
This brings up an even deeper discussion. If the disciples did not know about the death, burial, and resurrection until later, what did they do to be "saved"?
They believed that Jesus was the Messiah and that He was God. That was the sum and substance of Peter's great confession of faith.
Matthew 16.13 ¶ When Jesus came into the coasts of Caesarea Philippi, he asked his disciples, saying, Whom do men say that I the Son of man am?
14 And they said, Some say that thou art John the Baptist: some, Elias; and others, Jeremias, or one of the prophets.
15 He saith unto them, But whom say ye that I am?
16 And Simon Peter answered and said, Thou art the Christ, the Son of the living God.
Belief is always the key, whether in the OT, Jesus' day, or our own day. It always comes back to faith even if that faith does not have the specific knowledge that the faith of a different day has.