And all were weeping. The Evangelists mention the lamentation, that the resurrection may be more fully believed. Matthew expressly states that musicians were present, which was not usually the case till the death had been ascertained, and while the preparations for the funeral were going forward. The flute, he tells us, was heard in plaintive airs. Now, though their intention was to bestow this sort of honor on their dead, and as it were to adorn their grave, we see how strongly inclined the world is not only to indulge but to promote its faults. It was their duty to employ every method for allaying grief; but as if they had not sinned enough in disorderly lamentation, they are eager to heighten it by fresh excitements. The Gentiles even thought that this was a way of soothing departed spirits; and hence we see how many corruptions were at that time spread throughout Judea.

And all wept, and (o) bewailed her: but he said, Weep not; she is not dead, but sleepeth.
(o) The word signifies to beat and strike, and is used in the mournings and lamentations that are at burials, at which times men used this type of behaviour.

Not only her relations and friends, and the servants of the house, but the mourning women, that were hired on this occasion, and employed for this purpose:
but he said, weep not; neither in show, as the mourning women did, nor in reality, as the friends of the deceased:
she is not dead, but sleepeth; See Gill on Matthew 9:24. See Gill on Mark 5:39.

She is not dead but sleepeth - Her soul is not separated finally from the body; and this short separation is rather to be called sleep than death.