Blessed
barak (baw-rak')
to kneel; by implication to bless God (as an act of adoration), and (vice-versa) man (as a benefit); also (by euphemism) to curse (God or the king, as treason)
be the LORD
Yhovah (yeh-ho-vaw')
(the) self-Existent or Eternal; Jehovah, Jewish national name of God -- Jehovah, the Lord.
because he hath heard
shama` (shaw-mah')
to hear intelligently (often with implication of attention, obedience, etc.; causatively, to tell, etc.)
the voice
qowl (kole)
from an unused root meaning to call aloud; a voice or sound
of my supplications
tachanuwn (takh-an-oon')
earnest prayer -- intreaty, supplication.