He that keepeth
natsar (naw-tsar')
to guard, in a good sense (to protect, maintain, obey, etc.) or a bad one (to conceal, etc.)
his mouth
peh (peh)
the mouth (as the means of blowing), whether literal or figurative (particularly speech); specifically edge, portion or side; adverbially (with preposition) according to
keepeth
shamar (shaw-mar')
to hedge about (as with thorns), i.e. guard; generally, to protect, attend to, etc.
his life
nephesh (neh'-fesh)
a breathing creature, i.e. animal of (abstractly) vitality; used very widely in a literal, accommodated or figurative sense (bodily or mental)
but he that openeth wide
pasaq (paw-sak')
to dispart (the feet or lips), i.e. become licentious -- open (wide).
his lips
saphah (saw-faw')
the lip (as a natural boundary); by implication, language; by analogy, a margin (of a vessel, water, cloth, etc.)
shall have destruction
mchittah (mekh-it-taw')
a dissolution; concretely, a ruin, or (abstractly) consternation -- destruction, dismaying, ruin, terror.