Second, repentance means striving to change. It would mock the Savior’s suffering in the Garden of Gethsemane and on the cross for us to expect that He should transform us into angelic beings with no real effort on our part. Rather, we seek His grace to complement and reward our most diligent efforts (see 2 Nephi 25:23). Perhaps as much as praying for mercy, we should pray for time and opportunity to work and strive and overcome. Surely the Lord smiles upon one who desires to come to judgment worthily, who resolutely labors day by day to replace weakness with strength. Real repentance, real change may require repeated attempts, but there is something refining and holy in such striving. Divine forgiveness and healing flow quite naturally to such a soul, for indeed “virtue loveth virtue; light cleaveth unto light; [and] mercy hath compassion on mercy and claimeth her own” (D&C 88:40).
-Elder D. Todd Christofferson, "The Divine Gift of Repentance," October 2011 General Conference