Augustine of Hippo

(Tract. xxxi. 9) Here He foretels His resurrection: for the search for Him was to take place after His resurrection, when men were conscience-stricken. They would not acknowledge Him, when present; afterward they sought Him, when they saw the multitude believing on Him; and many pricked in their hearts said, What shall we do? They perceived that Christ’s death was owing to their sin, and believed in Christ’s pardon to sinners; and so despaired of salvation, until they drank of that blood which they shed.