that you keep the commandment without spot, blameless, until the appearing of our Lord Jesus Christ;
That was the thing that Nathan nailed David with, after David's experience with Bathsheba. He had said to David, "David, you've caused the enemies of God to blaspheme" ( 2 Samuel 12:14 ). You've given occasion to the enemies of God to lay blame against Christianity or against Jesus Christ because of your slovenliness. More is expected of you because you are a Christian. Produce more, Paul is saying.