* Thy righteousness.
   Men, as Bp. Horne observes, may decree wickedness by a law; or
   they may change their decrees, and with them what is right
   to-day may be wrong to-morrow; but the law of God is
   righteousness, and it is truth, to-day and for ever.

 * an everlasting.
  144  36:6  Isa 51:6,8  Da 9:24  2Th 1:6-10 
 * and thy.
  151  19:9  Joh 17:17  Eph 4:21