Mark 16:5

5. Entering into the sepulchre The sepulchres of the ancient Jews were often hewn in the solid rock, and consisted usually of two or more apartments. Entering its front door, you find its first and largest apartment to be a room several feet square. From this a low door opens into another apartment, into which you descend by a flight of steps. This is the sepulchre, or place where the corpse is deposited, either in cells cut into the wall, extending lengthwise to the distance of six or seven feet, or shelves cut parallel to the room, so that the entire length of the corpse would be visible. It is probable that the sepulchre in which our Lord was deposited was of this latter kind, for the two angels seen by Mary Magdalene stood one at the head and the other at the foot, where the body of Jesus had lain. John 20:12. We may suppose then that the women entered the first apartment (sometimes called the court) and saw the young man at the right hand, near or within the sepulchre, at which place he could easily invite them to see where the Lord had lain. Whether the whole train of women entered or not is not certain, but probably Mary, Salome, and Joanna did enter the first apartment. Nor is it certain whether any of them complied with the invitation to enter the sepulchre to see the shelf on which the sacred body had been deposited.

Young man A man in form but an angel in nature. It would seem that angelic beings can assume different forms, and invest themselves with apparent habiliments, and present or withdraw themselves from sight as they please. So our Lord in his resurrection body could make himself more or less known, as he chose, to his disciples. And this answers the very foolish question which some have asked: Whence did Jesus procure his resurrection garments? Sitting on the right side At their right hand as they entered the inner chamber.