Whoso diggeth
karah (kaw-raw')
to dig; figuratively, to plot; generally, to bore or open -- dig, make (a banquet), open.
a pit
shachath (shakh'-ath)
a pit (especially as a trap); figuratively, destruction -- corruption, destruction, ditch, grave, pit.
shall fall
naphal (naw-fal')
to fall, in a great variety of applications (intransitive or causative, literal or figurative)
therein and he that rolleth
galal (gaw-lal')
to roll -- commit, remove, roll (away, down, together), run down, seek occasion, trust, wallow.
a stone
'eben (eh'-ben)
a stone -- + carbuncle, + mason, + plummet, (chalk-, hail-, head-, sling-)stone(-ny), (divers) weight(-s).
it will return
shuwb (shoob)
to turn back (hence, away) transitively or intransitively, literally or figuratively
upon him