Charles Spurgeon Commentary Mark 5:2-3

"And when he was come out of the boat, straightway there met him out of the tombs a man with an unclean spirit, who had his dwelling in the tombs: and no man could any more bind him, no, not with a chain;" — Mark 5:2-3 (ASV)

And when he was come out of the ship, immediately there met him out of the tombs a man with an unclean spirit, who had his dwelling among the tombs; and no man could bind him, no, not with chains:

Those ancient graveyards were in remote places, for the people were too wise to bury their dead inside their cities. Very often, the tombs were hewn in caverns in the sides of hills and rocks, and here the dead were laid.

Of course, anyone who touched a tomb was thereby ceremonially defiled, so that the tombs were fit places for an unclean person possessed by an unclean spirit.

What a ghastly dwelling-place! What a grim abode for the man, and yet most fitting, for he was dangerous to all who passed by—a raving lunatic, who could not be restrained by any bonds or chains that could be put upon him!