I have not sat
yashab (yaw-shab')
to sit down (specifically as judge. in ambush, in quiet); by implication, to dwell, to remain; causatively, to settle, to marry
with vain
shav' (shawv)
evil (as destructive), literally (ruin) or morally (especially guile); figuratively idolatry (as false, subjective), uselessness (as deceptive, objective; also adverbially, in vain) -- false(-ly), lie, lying, vain, vanity.
persons
math (math)
an adult (as of full length); by implication, a man (only in the plural) -- + few, friends, men, persons, small.
neither will I go in
bow' (bo)
to go or come (in a wide variety of applications)
with dissemblers
`alam (aw-lam')
to veil from sight, i.e. conceal -- any ways, blind, dissembler, hide (self), secret (thing).