Psalm 130:1
130:1 A Song of degrees. Out of the {a} depths have I cried
      unto thee, O LORD.

      (a) Being in great distress and sorrow.

Psalm 130:3
130:3 If thou, LORD, shouldest mark iniquities, O Lord, {b} who
      shall stand?

      (b) He declares that we cannot be just before God but by
          forgiveness of sins.

Psalm 130:4
130:4 But [there is] forgiveness with thee, that thou {c} mayest
      be feared.

      (c) Because by nature you are merciful therefore the
          faithful revere you.

Psalm 130:7
130:7 Let Israel hope in the LORD: for with the LORD [there is]
      {d} mercy, and with him [is] plenteous redemption.

      (d) He shows to whom the mercy of God belongs, that is,
          Israel, to the Church and not the reprobate.