What does Mark 16:7 mean?
Jesus was crucified on Passover (Mark 14—15). The Passover, itself, is not a Sabbath. It was to be celebrated in the evening, and in the morning people were allowed to go home (Deuteronomy 16:7). The day after Passover is the first day of the weeklong Feast of Unleavened Bread (Leviticus 23:4–8). The first and last days of the feast are high days, that is, holiday-Sabbaths, during which no normal work may be done. Legally, the disciples could have started for home the morning of Passover, but the trip was several days long, and Jesus was on trial and then being crucified. That evening the Sabbath started, and they could not travel again until it was over.Saturday evening, at dusk, the Sabbath is over. Sunday morning, the women find the empty tomb. They return to the disciples and give them the angels' message. Shortly after, Peter and John check for themselves (John 20:1–9).
In the forty days Jesus ministers between the resurrection and the ascension (Acts 1:3), Jesus will meet the disciples in Galilee (John 21) as He promised before the crucifixion (Mark 14:28). Later this day, however, He travels with two disciples on the road between Jerusalem and Emmaus, inspiring them to return to Jerusalem (Luke 24:13–34). This evening, He meets with ten of the remaining Twelve, as Thomas will be absent (John 20:19–24). He will also see a few others in Jerusalem (Luke 24:36–49).
Peter is mentioned as one who specifically needs to be told the angel's message. Once the Twelve's self-appointed spokesman (Matthew 15:15; Mark 8:32; 9:5; 11:21; Luke 8:45; 9:20; 18:28), he has been hiding in shame since he denied Jesus at the trial before the Sanhedrin (Mark 14:66–72). Peter had a very strong idea of who Jesus was and what Jesus would do for him. Now, Peter thinks himself a cowardly traitor, that Jesus is dead, and all is lost.
Jesus will take the time to reconcile with Peter in particular, evidently both privately directly following the resurrection (Luke 24:34; 1 Corinthians 15:5) and more publicly sometime later (John 21:15–19). Jesus will come to seven of the disciples while they are fishing at the Sea of Tiberias. After providing a miraculous catch of fish, reminiscent of His calling of some of these same disciples described in Luke 5, He feeds them breakfast. Jesus then asks Peter twice if he loves Him with full, self-sacrificial love (agape). Peter will humbly respond that he loves Jesus with the lesser love of affection (phileo). Jesus will accept that answer, asking Peter the third time if he loves Jesus with phileo love and then proceeding to commission Peter after he responds in the affirmative. Peter finally acknowledges that he cannot give Jesus all He deserves, and he does not deserve what Jesus gives to him. Still, Jesus gives Peter the commission of "feeding His sheep," knowing Peter finally has the humility to accept the Holy Spirit who will fill what Peter lacks (Acts 2:1–4, 14–41).