The prayer now makes a stride in advance. It has been hitherto for the first step in justification—the wiping out of past transgressions. It is now for restoration, for a renewal of spiritual life, for a return to God's favour, and to the spiritual joy involved in it.
First, however, an additional confession is made (Psalms 51:5, Psalms 51:6). Not only have I committed acts of sin (Psalms 51:1-4), but sin is thoroughly ingrained into my nature. I was conceived in it; I was brought forth in it; only the strongest remedies can cleanse me from it (Psalms 51:7).
But cleansing alone is not enough. I need renewal (Psalms 51:10); I need thy Holy Spirit (Psalms 51:11); I crave, above all, the sense of a restoration to thy favour—a return to the old feelings of "joy and gladness" (Psalms 51:8), even "the joy of thy salvation" (Psalms 51:12).