What Does It Mean to Be Holy?

Questions about what it means to be holy, how to fight your sins without slipping into a works-based mindset, and whether, as a Christian, it’s better to be humble, meek, and self-deprecating because none of us does good or bold and confident because we’ve been saved by the Creator.   What does it mean to be holy, and why is this important? How do I rest in Jesus’ completed work and still fight my sins without slipping into a works-based mindset? As a Christian, is it better to be humble, meek, and self-deprecating since none of us does good, or can we be bold and confident since we are saved by and loved by the Creator of the universe?