Thayer's Greek Lexicon

 1. mercy: kindness or good will towards the miserable and the
afflicted, joined with a desire to help them
  1) of men towards men: to exercise the virtue of mercy, show
one's self merciful
  2) of God towards men: in general providence; the mercy and
clemency of God in providing and offering to men salvation
by Christ
  3) the mercy of Christ, whereby at his return to judgment he
will bless true Christians with eternal life