If they say
'amar (aw-mar')
to say (used with great latitude)
Come
yalak (yaw-lak')
to walk; causatively, to carry (in various senses)
with us let us lay wait
'arab (aw-rab')
to lurk -- (lie in) ambush(-ment), lay (lie in) wait.
for blood
dam (dawm)
blood (as that which when shed causes death) of man or an animal; by analogy, the juice of the grape; figuratively (especially in the plural) bloodshed (i.e. drops of blood)
let us lurk
tsaphan (tsaw-fan')
to hide (by covering over); by implication, to hoard or reserve; figuratively to deny; specifically (favorably) to protect, (unfavorably) to lurk
privily for the innocent
naqiy (naw-kee')
innocent -- blameless, clean, clear, exempted, free, guiltless, innocent, quit.
without cause
chinnam (khin-nawm')
gratis, i.e. devoid of cost, reason or advantage -- without a cause (cost, wages), causeless, to cost nothing, free(-ly), innocent, for nothing (nought, in vain.