After He was raised from the dead, His disciples remembered that He had said this. Then they believed the Scripture and the word that Jesus had spoken.
KJV
When therefore he was risen from the dead, his disciples remembered that he had said this unto them; and they believed the scripture, and the word which Jesus had said.
ASV
When therefore he was raised from the dead, his disciples remembered that he spake this; and they believed the scripture, and the word which Jesus had said.