Luke 24:5-7

The angels’ words stressed the fact that Jesus was alive. It was inappropriate to look for a living person in a tomb (cf. Acts 2:24). They then flatly declared that Jesus had risen from the dead and reminded the women of Jesus’ prophecy that He would rise after three days (Luke 9:22; Luke 9:43-45; Luke 18:31-33). Luke wrote that the meaning of Jesus’ prediction was incomprehensible to the disciples when He gave it (Luke 18:34; cf. Luke 24:16). However now God’s messenger clarified it. Note the recurrence of the divine necessity behind Jesus’ death and resurrection in Luke 24:7 indicated by the word "must" (Gr. dei, cf. Luke 2:49; Luke 4:43; Luke 13:33; Luke 17:25; Luke 19:5; Luke 19:22; Luke 22:37; Luke 24:25-27; Luke 24:44-46; Acts 2:23-24).