Acts 1:3 tells us that after the resurrection there was a period of forty days in which Jesus appeared to His disciples. We see three things that Jesus did during that time.
1) Jesus restored His disciples’ faith & gave them hope
Jesus’ crucifixion devastated His followers. In Matthew 19:27 Peter said to Jesus, “We have left everything to follow you.” And in John 6:68 he said, “Lord, to whom shall we go? You have the words of eternal life.” In John 20:9 we also learn that they “did not understand from Scripture that Jesus had to rise from the dead.”
From the perspective of His followers, while Jesus was being crucified, everything they had hoped in and believed in was dying before their eyes.
So after His resurrection Jesus set out restore their hope.
We see Him appear to a sobbing Mary Magdalene in John 20:15-18. With one simple word, “Mary”, Jesus restored her faith and gave her hope.
Then in John 20:19-30 Jesus appeared to the apostles and “showed them his hands and side”, which had been pierced for their sin. Then we’re told the apostles were “overjoyed when they saw the Lord.” They had misunderstood. What the world had meant for evil, God meant for good.
2) Jesus taught His disciples how the scriptures pointed towards Him
As we saw earlier Jesus’ followers did not understand what the Scripture said about Him. That’s why once their faith was restored Jesus moved to ground their faith through Scripture.
We see this in Acts 1:2-3 where we find Jesus giving the apostles commandments and speaking of the things pertaining to the kingdom of God.
Again in Luke 24:27 we see Jesus, beginning with Moses and all the Prophets, explaining to His disciples what was said in the Scriptures concerning himself.
And again in Luke 24:32 where the disciples’ “hearts burned” as Jesus “opened the Scripture” to them. They once were blind to the truth of the Bible but Jesus gave them spiritual sight.
3) Jesus sent His followers out to share the good news
With their faith restored and strengthened, Jesus’ final instructions to the Apostles in Matthew 28:19 was to “go and make disciples of all nations” by sharing with the world the great things that Jesus has done.