"It is the misfortune of kings that they scarcely ever do the good they have a mind to do; and through surprise, and the insinuations of flatterers, they often do the mischief they never intended." --Fenelon
This is true, not just of kings, but of everyone. This is always happening. We have the best of intentions and yet, somehow find ourselves doing the thing we feared. Just as Paul described. Action is so important. Again, it is easy to be a believer in the abstract, in theory, purely intellectually. But putting belief, which is contrary to self and fallen nature, into ACTION . . . into relationship . . . is another thing altogether. It is rarely done. Talk is cheap. Talking the talk is easy. Walking The Walk is rare, priceless, a glory (to God) to behold.
But there is always an upside. Failing so miserably and constantly . . . as we do . . . who would pursue that standard of perfection (as we are called to do) . . . provides the parallel constant opportunity to recognize one's inadequacies and be ever more grateful for the mercies of the Lord. How merciful, gracious He is . . . "that He saved a wretch like me"!