We begin to see some weakness in David in this chapter. He is quick to plan violence against Nabal, and he is beginning to collect wives. David’s lapses in judgment and weakness for women will not serve him well as king.
The Bible is unusual in that is tells the weaknesses of its heroes along with telling of the successes. This can be reassuring to those of us who aren’t perfect. We try to follow God, but sometimes fail to do everything we should. It doesn’t mean we should ignore our weaknesses, but it does mean God can still use us even when are weak.