There is no “bad”, mrc. We constantly have to be reminded of None Else Besides Him. How He is sensed and how we interpret His actions depend on our own vessels. Therefore, no objective bad exists, so if you’re talking about the good and bad within you–first you need to acquire good (Masach and reflected light), then you will know the good and bad within you which is only the nature you were given vs the higher nature you ask for. The will to receive for one’s self is constantly looking to deviate us from the path.
It’s pretty difficult to interpret King David since it’s probably the most emotional of all Kabbalistic writings. What King David attained and the words he used to convey the emotion is only something we can understand once we attain those same degrees.
After, since this is already the “completion” of the program that was set out in the thought of creation where the created being and the Creator are united again but as a result of a conscious effort from the side of the created being.