The lips
saphah (saw-faw')
the lip (as a natural boundary); by implication, language; by analogy, a margin (of a vessel, water, cloth, etc.)
of the righteous
tsaddiyq (tsad-deek')
just -- just, lawful, righteous (man).
know
yada` (yaw-dah')
to know (properly, to ascertain by seeing); used in a great variety of senses, figuratively, literally, euphemistically and inferentially
what is acceptable
ratsown (raw-tsone')
delight (especially as shown) -- (be) acceptable(-ance, -ed), delight, desire, favour, (good) pleasure, (own, self, voluntary) will, as...(what) would.
but the 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
of the wicked
rasha` (raw-shaw')
morally wrong; concretely, an (actively) bad person -- + condemned, guilty, ungodly, wicked (man), that did wrong.
speaketh frowardness
tahpukah (tah-poo-kaw')
a perversity or fraud -- (very) froward(-ness, thing), perverse thing.