22 Therefore, when He was raised from among the dead His disciples remembered that He had said this; so they believed the Scripture, even the word that Jesus had spoken.*Note that my rendering, "They believed the Scripture, even the word that Jesus had spoken", has the effect of equating His word with Scripture. More precisely, the Lord’s statement in verse 19 was repeated as an accusation three years later, as recorded in Matthew 26:61 and 27:40, and Matthew’s Gospel had already been circulating as Scripture for decades when John wrote. If this line of reasoning is correct, then John is calling Matthew ‘Scripture’! (Of course there was an interval of a number of years (eight) between the resurrection and the publishing of Matthew’s Gospel, but perhaps some did not ‘remember’ until they saw it written down.) I am not aware of any OT prophecy that could be in view here.