O Lord
'Adonay (ad-o-noy')
the Lord (used as a proper name of God only) -- (my) Lord.
thou hast pleaded
riyb (reeb)
to toss, i.e. grapple; mostly figuratively, to wrangle, i.e. hold a controversy; (by implication) to defend
the causes
riyb (reeb)
a contest (personal or legal) -- adversary, cause, chiding, contend(-tion), controversy, multitude (from the margin), pleading, strife, strive(-ing), suit.
of my soul
nephesh (neh'-fesh)
a breathing creature, i.e. animal of (abstractly) vitality; used very widely in a literal, accommodated or figurative sense (bodily or mental)
thou hast redeemed
ga'al (gaw-al')
to redeem (according to the Oriental law of kinship), i.e. to be the next of kin (and as such to buy back a relative's property, marry his widow, etc.);
my life
chay (khah'-ee)
age, alive, appetite, (wild) beast, company, congregation, life(-time), live(-ly), living (creature, thing), maintenance, + merry, multitude, + (be) old, quick, raw, running, springing, troop.