[The earliest manuscripts and some other ancient witnesses do not have verses 9–20.]

9 When Jesus rose early on the first day of the week, he appeared first to Mary Magdalene, out of whom he had driven seven demons.

References for Mark 16:9

10 She went and told those who had been with him and who were mourning and weeping.
11 When they heard that Jesus was alive and that she had seen him, they did not believe it.

References for Mark 16:11