His watchmen
tsaphah  (tsaw-faw')
to lean forward, i.e. to peer into the distance; by implication, to observe, await -- behold, espy, look up (well), wait for, (keep the) watch(-man).
are blind
`ivver  (iv-vare')
blind -- blind (men, people).
they are all ignorant
yada`  (yaw-dah')
to know (properly, to ascertain by seeing); used in a great variety of senses, figuratively, literally, euphemistically and inferentially
they are all dumb
'illem  (il-lame')
speechless -- dumb (man).
keleb  (keh'-leb)
a dog; hence (by euphemism) a male prostitute -- dog.
they cannot
yakol  (yaw-kole')
to be able, literally (can, could) or morally (may, might)
nabach  (naw-bakh')
to bark (as a dog) -- bark.
hazah  (haw-zaw')
to dream -- sleep.
lying down
shakab  (shaw-kab')
to lie down (for rest, sexual connection, decease or any other purpose)
'ahab  (aw-hab')
to have affection for (sexually or otherwise) -- (be-)love(-d, -ly, -r), like, friend.
to slumber
nuwm  (noom)
to slumber (from drowsiness) -- sleep, slumber.