Matthew 28:17 When they saw him, they worshiped him; but some doubted.
Mark 16:14 Later He appeared to the eleven as they sat at the table; and He rebuked their unbelief and hardness of heart, because they did not believe those who had seen Him after He had risen.
Luke 24:37 But they were terrified and frightened, and supposed they had seen a spirit.
John 20:25 The other disciples therefore said to him, “We have seen the Lord.” So he said to them, “Unless I see in His hands the print of the nails, and put my finger into the print of the nails, and put my hand into His side, I will not believe.”
In all four gospels, we the people doubting that Jesus actually rose again. Even some who saw Him still did not believe. They were sure they were seeing a spirit of Him, and not His actual body. Pray for a believing heart in all of God’s promises today.