This was that first appearance of our Lord after his resurrection to Mary Magdalene, after that he was risen from the dead, mentioned Mark 16:9,10, which she reported to the disciples; but Mark saith, they believed her not, 1 Thessalonians 20:11. Matthew tells us of another appearance of his, Matthew 28:9, to the women as they went from the sepulchre, when they held him by the feet, and worshipped him. Luke tells us of a third appearance to the two disciples as they were going to Emmaus; which is also shortly touched by Mark, Mark 16:12,13; but it is there said that they believed them not. John mentions neither of these. These were all the same day that he rose, so was also the next, which is mentioned by our evangelist in the following verses.
Related Commentaries of John 20:18
John 20:18
18 Mary Magdalene came and told the disciples that she had seen the Lord, and that he had spoken these things unto her.