I agree with all of this,
and would only add that David is now fully healed and standing before the Lord.
To see death as a failure is to miss the final, and most important, chapter of our lives.
None of us will ever achieve perfect healing on earth; it can only come in eternity.
Agreed, in part:
1. No human is 'perfect', that quality belongs to GOD alone.
Yet, because He created us each to "heal", mortally let's want this state,
as much as He wants it for us, meaning we do whatever is necessary, including our *
forgiving* everyone. Why? because this act
frees 
healing.
&
2. GOD tells us 'each' person tastes death once. -
But clinical experience has demonstrated repeatedly, that the most important-chapter in everyone's life, lies in our earliest developments
inside our mother's womb. - And research has now shown, that each of our moms' beliefs, emotions, thoughts, schooling, conflicts, etc - directly "imprint & train" each pre-born babe. And sets in motion, each child's earliest behavioral strategies, affecting how his/her body develops... The next most critical chapter is a person's
1st. year; before most babies become speakers. - You would be amazed, how much (both for good

, & evil

) these 2 periods shape each person's subconsious mind, which earliest programmings then run the persons' choices... throughout life. Can they be changed? - Yes! when you have learned how.
&
3.
GOD's plan-of-Salvation, (not only for the soul, as commonly assumed)
was for all-of-us, as a whole: soul~mind~body. GOD wants us
whole & mortally & now. Why? He loves us, perfectly. and
Once we each knew GOD sent us to earth with this knowledge, of giving one's soul~mind~body team permission to remember to heal. GOD, perfect forever, delights our highest & deepest &
expanding
joy