Behold he that keepeth
shamar (shaw-mar')
to hedge about (as with thorns), i.e. guard; generally, to protect, attend to, etc.
Israel
Yisra'el (yis-raw-ale')
he will rule as God; Jisrael, a symbolical name of Jacob; also (typically) of his posterity: --Israel.
shall neither slumber
nuwm (noom)
to slumber (from drowsiness) -- sleep, slumber.
nor sleep
yashen (yaw-shane')
to be slack or languid, i.e. (by implication) sleep (figuratively, to die); also to grow old, stale or inveterate -- old (store), remain long, (make to) sleep.