I love Velska's comment on my last post: "I often wonder if I am 'valiant' in my testimony, but I have no illusion about saving myself - I know I have to rely on Christ."
I think this is more true of the majority of members of the Church. We have no doubt in Christ's ability; we doubt our ability. This humble recognition therefore fuels our faith in Christ as Savior, and our need to trust Him, as well as to rely more fully on "the merits, and mercy, and grace of the Holy Messiah" (2nd Nephi 2:8).
Then AFTER being secure in that saving covenant--the "arms of safety" (Alma 34:16)--being faithful to Him becomes our greatest desire. We don't desire this in order to merit salvation (because we can't) but rather to show our commitment and desire to STAY in the saving covenant. And we wish we could be more profitable servants.
I think it's helpful to delineate between accepting/having faith in Christ as Savior and making Christ our Lord by turing our lives over to Him and serving Him and none else. This is where I so often fall short. Mercifully he has provided repentance, and I rejoice in that that, because all too often my behavior doesn't quite match the deepest desires of my heart.
That "natural man" battles with the spiritual born-again man in me. Nevertheless, I trust that Christ knows my heart, and knows that I truly desire righteousness and that I "hunger and thirst" for it. Although I fall short in actually attaining righteousness, He promises that I shall be "filled" for hungering and thirsting for it. (Matthew 5:6)
..."then is his grace sufficient for you, that by his grace ye may be perfect in Christ" (Moroni 10:32)